In MINT Condition. The sophistication of their design and the outstanding quality of the materials make these, in our opinion, the best pens ever made! Basic Parker 51 Aerometric Repair The clip is often referred to as the "transitional clip and the pens could be categorised as the MK I-B. This does not seem to have been a commercial success and was discontinued in 1963, Above: The 51 Aerometric Mk2 introduced in the late 1960s featured a 61 style cap with plastic jewel, a slightly shorter barrel with flattened rather than rounded end amongst a number of other differences. All parts except for the barrel and cap were identical to the full sized 51. The most obvious variations were that the barrel imprints were at the filler end rather than next to the clutch ring, and both jewels were metal rather than plastic, Above: In 1947-48 Parker produced a demi-sized version of the 51 Vacumatic. But precisely. Note the fine-finned "collector" under the hood and surrounding the base of the nib. Often a "working" Vac-filler which still has its old diaphragm will begin to show irregular flow, or will even release a sudden flood of ink as the age-rotten rubber fails. Fitted with the original Scarce 14kt gold super smooth Medium Stub italic nib giving a wonderful writing style. A Signet/Insignia and a Flighter Parker "51". Although the "Pli-Glass" material has often been misidentified as nylon, these sacs were in fact made of PVC (vinyl). Lined Coin Silver and GF clip Early USA Parker 51 Vacumatic in Black with Sterling Silver Cap. Lustraloy with GF clip and GF cap band Fitted with the original 18kt gold super smooth medium tipped nib. The three bottom ones being the rarest colours. Smooth Finish with Chevron Cap Band. Some of these designs are very rare. Fitted with the original 14kt gold super smooth fine tipped nib. The MKII pens of course had a brand new filling system that was to be adopted by virtually all Parkers in the future, the Aerometric. The colours of the vacumatic filler Parker "51": In Absolute MINT Condition. All Aerometric pens were single-jeweled. Most 51s found in the UK are similar to this, with production running until probably at least the late 1960s, Above: In 1961, Parker USA introduced a cartridge/converter version of the 51. Parker 51 in Black with Stainless cap. A vintage P51 on the left and the modern version on the right, L to R: Parker IM, vintage Parker 51, modern P51, modern P51 deluxe, Pelikan M805, Lamy 2000, Lamy Safari. Though of course, the hooded nib allows you to grip the P51 much closer towards the front, so it remains usable unposted. Heirloom, all solid 14 k gold, fish scales, (aka Scallop) (intro 1942) Sterling Silver plain with GF clip and chevron band Fitted with the original 14kt gold, super smooth medium to fine tipped nib. The Mark I Parker "51" came in seven colours: India Black Powered by, L to R: Vintage P51 gold-filled, modern P51 Deluxe, Vintage P51 'Lustraloy', modern P51. Custom, GF with thin vertical lines Fitted with the original 14kt gold, super smooth medium tipped nib. Mark IV (Early 1970's-mid 1970's) Still looked a lot like the Parker 61. Fountain Pen, Aerometric fill. In 1955, a matching 51 Jotter ballpoint was introduced, along with the so-called Liquid Lead pencil -- a nonretractable ballpoint using a graphite slurry. On both my vintage pens, the cap feels mushy and it's hard to tell if it clicked on properly or not. Vacumatic 51s - with the filler under the blind cap at the end of the barrel - were in production in the USA from 1941-48, Above: Another Parker 51 Vacumatic in black with a coin silver cap and single jewel. Named after Parkers 51st anniversary, the Parker 51 has without doubt been one of the most successful pens ever made. In 1947 the arrow clip was simplified, eliminating the earlier Blue Diamond mark (for the simplified clip, see the image at the top of the page), and at the end of 1948 the filling system was changed from a multi-stroke pump (taken over from the The big difference was that it sported an octanium (eight metal alloy) nib rather than one made of gold and it came with a shiny chrome cap only (the Standard Parker "51" were made in a matte chrome design). It changed name to Insignia in 1957 and both names are used by collector's. Twin Tassie Model. In 1956 the ink Superchrome engraving on the metal filler sleeve with filling instructions was replaced with Parker ink. We sell, service and refurbish more of these Mk1 models than any other make or model of pen. Pens with breather tube problems will only fill to around 1/4 of their proper capacity, and with their reservoirs filled with air instead of ink, they will be prone to flooding and irregular ink flow. Small changes and improvements to the 51 continued almost annually from 1950 on with the major redesigns in the late 1960s with a streamlined Mark 2 followed by the final Mark 3 version in around 1975. As their brand name positions them in the market to cater towards a wide audience, not just the die-hard enthusiasts, it makes sense that they put their money on c/c filling systems. Matching pencils and desk sets were offered throughout the 51's production run. Not that I think cartridges or converters should be seen as a lesser option, as they remain a very accessible and practical option for everyday use. Works perfectly. What I DO find a really bad oversight on Parker's end, is that a pen this price really should come with a converter included in the box. from the first quarter of 1941. Ink is drawn in to the pen by repeated pushing of a plunger at the end of the barrel. Black As demand grew, premier models in Buckskin Beige, Nassau Green and Yellowstone (Mustard) were added along with some stunning cap designs in solid 14k gold such as the famous Empire State and the Coronet pattern owned by Dwight D Eisenhower. Aerometric 51s used a transparent synthetic sac that is extremely durable but prone to darkening (new replacements are available here. In Absolute MINT Unused Condition. Fountain Pen and Ballpoint. The cap jewel or clip screw, was made in black (while the Standard had a pearl coloured plastic)The "51" Special initially came in four colours, Green being a later fifth addition to the line. This supply was soon exhausted, however, and before long it became clear that even the replacement barrels were crack-prone. For an older discussion of Moholy-Nagy's actual design work for Parker, see Abe Schwartz's article in Pen World, 6/5 (May/June 1993). Despite some people's criticism of the new nib not being true to the original design (Left), I don't think the old and new are that dissimilar from a visual perspective. You may however quote The new clip was very similar to the early Vacumatic clips but was longer. In Near MINT Condition. Perhaps no other fountain pen has been so unanimously acclaimed as a classic. This digit was deleted on the US made pens in 1953 but continued until 1959 on European (and Canadian?) Secondly an imprint can be found on the top of the barrel, just under the cap clutch ring: There's been some confusion, since David Shepherd chose in this book "Parker 51" not to count the Vacumatic filler as MK I, instead starting with the first aerometric model. Teal Blue (aka Turqoise) Fountain Pen, aerometric fill. Still, Aerometric fillers are by no means entirely foolproof, and are often found with clogged or corroded breather tubes (see In Absolute MINT Condition. IN Mint Condition. Sterling silver and coin silver caps were also available, but were discontinued before the introduction of the simplified arrow clip and Aerometric filler. MINT Parker 51 Custom pencil in Grey with Gold filled cap. The Parker "51" aerometrics: Black, Navy Grey, Teal Blue, Midnight Blue, Plum, Burgundy, Blood Red, Forest Green and Cocoa. Where the steel nib is reliable but a bit bland, the gold nib on the Deluxe is much more interesting to write with and even has a slightly stubby tipping shape that offers some line variation. Cordovan brown These rubber sacs inevitably rotted away in time due to the acid in the ink. Despite the cap finial of the modern P51 really just being a single part, the stepped shape and 'jewel' insert somewhat recreates the look of the vintage. In MINT Condition. In Near MINT Condition. Modern Parker 51 on the left, the slightly shorter vintage P51 on the right. The gold nib remains stiff due to the hooded construction, but you can still feel the slight softness in the gold alloy despite not getting any line variation out of it. Aerometric fill. Black Burgundy Heirloom, all solid 14k gold, plain For more on the origins of the 51, see the article by Zazove & Fultz in the Fall 2000 issue of The PENnant, now available online here. The steel-nibbed standard version is a capable writer, but nothing particular to write home about. Fitted with the original 14kt gold, super smooth fine tipped nib. Fitted with the original 14kt gold, super smooth medium to fine tipped nib. Fitted with the original 14kt gold, super smooth medium tipped nib. Navy grey Almost all pens had to have moving parts (well, all until the Parker 61) to make the filling easy. Maybe the most sought for caps of the Parker "51", Among other things, this article provides annual sales figures for the 51: An important article by Fultz, Zazove, & Hiscock, "The Parker 51 Before 1941: Development and Test Marketing", is found in Pen World, 17/7 (Aug/Sept 2004). This was identical to the larger pen, just proportionally smaller in all respects including the cap, and was in production until around 1960, Above: A 51 Aerometric Mk1 from the mid 1950s showing the shorter clip. When uncapped, the modern Parker 51 (Left) is a bit shorter than its vintage counterpart! There are some things that give it away, though: the dimensions didn't change too much, but the new 51 did get ever so slightly longer. Top: the modern P51 takes a regular Parker converter, Bottom: a vintage P51 aerometric captured converter. Why oh why would any pen designer put airholes under the finial, except to use a little less metal? I have a several vintage P51s, vacuumatics and aeromatics and they are terrific pens. Lustraloy with Chrome Plated clip Specials also usually have caps that are polished bright rather than frosted, and a cap jewel that is black, not pearlescent (note, however, that late-production Specials from the 1960s resembled normal 51s, with frosty caps, pearl jewels, and gold nibs). All versions are being made both as vacumatic fillers and aerometric fillers with original Parker internal parts, so it's very hard to tell the difference. In Absolute MINT Condition. I had an IM with a giant slit under the clip, and a Sonnet with those finial air holes, and both of them dried out if I left them more than 2 days without writing. With sales in excess of 20 million pens, it was like a pen from another planet! It rapidly became 'the world's most wanted pen', It was first launched to the American public in January 1941 in just four colours: India Black, Cedar Blue, Dover Grey and Cordovan Brown with a wide choice of cap styles. You can pick one up pretty much anywhere online at much less than the re-make in excellent working condition. Fitted with the original 14kt gold super smooth Medium tipped nib. The most notable is by Fultz, Zazove, & Parker (though it must be noted that an earlier draft and not the final article was mistakenly published, while there were also problems with the photos and their credits -- see the following issue for more on this). It also had the arrow clip with the blue diamond design previously added to the the Vacumatics in 1939. Parker 51 Custom in Burgundy with Gold filled cap. But, like in the US, vacumatic fillers in Navy Grey has surfaced (there are also some examples of US-made Burgundy vacumatic filler Parker 51's.) In Near Mint Condition. Parker 51 Custom in Black with gold filled filled cap. They dry the nib out making the whole thing unusable over time. Copyright 1997-2022 David Nishimura. Parker 51 in Black with Stainless cap. The Aerometric filling system is shown below in an extract from an original ad, c. 1948. Called almost a blasphemy by some, I actually think it's an improvement over the original. Parker 51 Clutch Pencil in Black with Stainless cap. I have both of them Vista Blue and Black versions and they have been fantastic. Cap screw now in metal, section ring wider again. Nor is it merely a triumph of styling -- though it has a place in the Museum of Modern Art's design collection, and Lazlo Moholy-Nagy found it worthy of praise -- for it is also one of the most robust and practical writing instruments ever made. The Parker "51" came in 4 basic different styles. Cedar Blue More precisely, it's inspired by the first generations of the Parker 51. This model, with many variations, was in production in the USA and UK from around 1948 to the late 1960s. In MINT Condition. Mechanically, it seems to be closer to the 51 copycats of the 1940s, such as the Waterman Taperite and the Eversharp Fifth Avenue, or to the later Parker 45. Perhaps rarer than the above caps are the "Fish Scale" caps in Solid gold. Many Parker 51s survive in usable condition. From top to bottom: a Dove Grey 1946 Vac-filling 51 with sterling silver cap and Blue Diamond clip; a 1947 Vac-filling Demi in Cordovan; a Forest Green 1949 Aerometric Demi; a 1950 full-size Aerometric in Navy Grey; a Flighter with stainless steel cap and barrel and inlaid gold filled cap band, c. 1952; and an English-made Signet with gold-filled cap and Absolutely! Instead of the button operated rubber diaphragm filler, this new 51 came with a PVC pli-glass reservoir with a 30 year life expectancy - an astonishingly long life given that most pens then required a service every 5 years or so. HERITAGE COLLECTABLES FULLY RESTORED VINTAGE WRITING INSTRUMENTS. The Parker 51 went into production in 1941, and remained a best-seller for decades thereafter. This had the aerometric filling system but in the manner of the Demi "51" with a U-shaped pressure bar. Aerometric fill. Parker 51 Fountain Pen | Midnight Blue Barrel with Chrome Trim | Fine wit Parker 51 Fountain Pen | Black Barrel with Chrome Trim | Fine with Black Parker 51 Fountain Pen | Teal Blue Barrel with Chrome Trim | Fine with Bl Something went wrong. Fitted with the original RARE 14kt gold Stub italic medium tipped nib giving a superb writing style. Standard colours in the UK were black, burgundy, teal blue and grey. It's cheaply mad and seems like something the finance department designed to cut costs. This pen was made of steel with GF trim and survided until 1960. In 1957 Introduced the Parker "51" Insignia but this was really only a renamed Signet. From the top: India Black, Cordovan Brown (aka Burgundy), Dove Grey, Cedar Blue, Nassau Green (aka Sage), Mustard (aka Yellowstone) and Tan (aka Buckskin Beige). Not only does this 51 use cartridges, it lacks the sophisticated, ink-trapping collector of the original 51, and uses a small, conventional nib instead of the original tubular design. In production in the USA from 1941-48, First Year 51 Vacumatics produced in 1941 differed in some respects from the 1942-48 production. Basic Parker 51 Aerometric Repair). Makes any Parker 51 suitable for a desk set. A fantastic collection of double-jewelled Vacumatic filler Parker "51" 's" with rare caps. Although it has often been repeated as fact that 51s bearing a "T"-prefix date code were assembled in Parker's Toronto plant, there are strong reasons to doubt this (full discussion here). Fitted with the original 14kt gold, super smooth medium to fine tipped nib. Grey I think opinions in general have already become a bit more nuanced, showing that it certainly isn't all bad as some would suggest in the past. The same year the additional logo with the arrow through a circle was added to the cap, aka the "halo" logo, while the Demi Parker "51" was discontinued. Two Vacumatic filled Parker "51" in Dove Grey In MINT condition in original box. The gold-nibbed Deluxe version is a slightly different beast though. Sterling Silver with vertical lines with GF clip and chevron band, a cap band sporting a pattern of repeated chevrons, this is the most common silver cap. here are also examples of Demonstrators, a pen in all aspects like the ordinary Parker "51" but made in clear plastic, showing the workings inside the pen, primarely made for pen sellers. The sectional view below comes from a Parker repair manual from 1947. Parker 51 Custom in Crimson with gold filled filled cap. The c/c filling system was obviously to be expected. After numerous reports of cracked barrels, Parker manufactured a quantity of thicker-walled replacement barrels. Colour ranges, cap styles and the timing of design changes vary between Parker's factories in the USA, UK and elsewhere: detailing these variations are way beyond the scope of this little summary. Scarce USA Parker 51 Custom in Cocoa with Gold filled cap. In the event, even this projection proved to be a little pessimistic as 51s continue arriving here every month for their first service and sac replacement in 70 years! Aerometric fill. There seems to be a problem serving the request at this time, {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}. Far too much. Oh, did I mention it's seriously overpriced? (including five Parker 51 pens, of different types). Ink is held directly in the barrel - the pen does not have a conventional ink sac, Above: Parker 51 Vacumatic in buckskin beige (also known as tan) with double jewels. What I did find particularly noticeable, and even a bit bothersome is that both nibs seem to have a particularly fussy and narrow sweet spot in how you rotate the nib. Forest Green. The replicas do not (so far) carry any date code imprints. Aerometric Demis are slightly longer than Vac-filler Demis, and more slender. Exactly! In Original Box. Fitted with the original 14kt gold, super smooth fine tipped nib. In Absolute MINT Condition. Aerometric fill. Of course the original Parker 51 -as with many vintage pens- isn't a terribly large pen. Tan (aka Buckskin Beige). This new pen is a shadow of the original. Parker 51 in Teal Green With Stainless Cap. While the earlier filler had the larger ink capacity, the Aerometric was simpler and more robust, with a more intuitive mode of filling and a special vented sterling silver breather tube to reduce the likelihood of leakage during flight. Parker 51 Barrel for a pen holder. In 1958 Parker tried a the cartridge/converter filling system on some Parker "51's" but this didn't sell well at all so it was discontinued around 1960, making these pens rather hard to find. Scarce Parker 51 Custom Mark 2 SET in Teal Green with Gold fill caps. The new filling system was initially advertised as the "Foto-Fill" filler, with the term "Aero-metric" applied to the pressure-equalizing venting system provided by the specially-designed sterling silver breather tube. In 1949 the Parker "51" Presidential was introduced in solid gold. Both the half demonstrator and full demonstrator are being reproduced, and also a version where both cap, barrel and section are made from clear lucite. If you look around a bit, these can be had for a great deal, especially the Deluxe version is a great buy when you can get it at a discounted price!Thanks for reading! Fitted with the original 14kt gold super smooth Medium tipped nib. In late 1947 Parker in Newhaven, UK, started to produce Vacumatic filler Parker "51"'s, although no double jewelled pens were offered and the pens only came in the colours of India Black, Cedar Blue, Dove Grey and Cordovan Brown. Not produced in the Demi-size. The majority of examples in circulation, however, date from the 1950s. Both transitional and blue diamond clips clips offered until 1948, while Parker cleaned out old stock. RARE USA Parker 51 Aerometric Demonstrator Fountain Pen Clear Body and Cap model with gold filled trim. Aerometric fill. Both in Mint condition in original box. So it is sometimes tricky to see the orientation of the nib properly. Aerometric fill. I'm sure in time the new 2001 models will accrue a similar reputation, I actually use my pens, and already very much like the new versions which are in daily use and I have no complaints so far. The nib, then. Fitted with the original 14kt gold super smooth medium to fine tipped nib. $50-$75 is about right. To criticise the adoption of a cartridge/convertor filling system is a nonsense. Nassau Green (aka Sage) Images 2012 and courtesy of Tsachi Mitsenmacher. The barrel colours were: n 1954 the engraving Made In USA was added to the back of the cap. Demonstrators in clear Lucite were made for dealer use, but not sold to the general public. The Full Demonstrator, with both the section, body and blind cap in clear plastic, was made from 1945, although most are dated 1947-1948. Black And that effect seems to be magnified by the fact that the hooded nib sort of obstructs your view. This essay should help put to rest the persistent myth of Moholy-Nagy as the designer of the 51, restoring credit to the designing trio of Marlin Baker, Gaylen Sayler, and Milton Pickus. * = images pending** = info and images pending. Both in Perfect condition but with some plate loss on clip points. In 1947 a court ruled in the US that products could no longer be sold with a life-time guarantee. The Demi pens were not made in this style. Same goes for the 18k nib option for about $250. Please donate to help me keep this site online. I also like the Parker 75 but I keep going back to one of my Parker 51 pens. Navy Grey The 51 Special was a later addition to the line, an economy version without a gold nib and with a simplified Aerometric filler mechanism. Demonstrator. These clips were also fitted to all vacumatic filler parker 51's made in the UK, no English blue diamond caps were produced. Mark I (1942-48), had the (late) Vacumatic filling system with a plastic plunger hidden behind a blind cap. USA Parker 51 Vacumatic Custom in Cedar Blue with gold filled cap fine Parallel line pattern. Parker hasn't been doing aerometric-style (or for that matter, Vacumatic pump-filler) mechanisms for years at this point. In Absolute MINT Unused condition in original Box. Heirloom, all solid 14 k gold, fine barley Empire (aka Icicle, aka Manhattan, aka Empire State), all solid two tone red/yellow14 k gold (intro 1942) This cap was reanimated in 2002 when Parker launched the Parker "51" Special Edition. Burgundy India Black Fitted with the original 14kt gold, super smooth medium to fine tipped nib. These are relatively rare, especially the Burgundy. Aerometric fill. Importantly, the front shell and barrel were still made from lucite with the barrel threading being the same as on the Mk1, This is only intended to be a very brief overview of the key immediate visual features of the various 51 models to help with a quick initial identification. Cedar Blue The entire pen is lightweight, coming in at around 20 grams total. The contents of most of the articles noted above have been incorporated into the text of an outstanding monograph on the 51, written by David and Mark Shepherd and privately printed at the end of 2004. This longer barrel gives the impression of a much larger pen, even though in reality it's not that big of a difference. Fitted with the original 14kt gold super smooth Medium tipped nib. custom, Gold filled with alternating 4 vertical lines and plain band, this is the most common GF design The Spring 2002 issue of The PENnant contains several articles on the Parker 51. Read more about the great "51" in David and Mark Shepherds book "Parker 51". Insignia with Gold filled alternating straight and wavy lines and plain band Between the standard version with brushed steel cap, and the 'Deluxe' with gold-plated details, the designs perfectly mimic the two vintage P51 (both aerometrics) I own: one with guilloche gold-filled cap and one with the 'Lustraloy' brushed steel cap. These colours and cap designs are highly sought after today and are the focal points of many 51 collections, A 51 Vacumatic in Nassau Green with jewelled filler cover, The Vacumatic filling system was developed by Parker in the early 1930s. From what I can tell, it does indeed look like the nibs are Parker's standard semi-tubular nibs (and feeds) that were used in the previous iterations of the IM, Vector, Jotter, and some other sub-100$ models. In the late 1950's the gold cap ring was deleted from the Flighter pen. The U.S. design patent for the Parker 51 was 116,097. In MINT Condition. An utter, complete failure. For this reason we install fresh diaphragms in all Vac-fillers that we sell. Fitted with the original 14kt gold super smooth Medium to broad tipped nib. and the more uncommon Navy Grey. Blue Diamond clips are normally gold-filled, whereas the later arrow clips usually (but not always) match the cap's color. In Absolute MINT Condition . In 2002 Parker launched a retro model, the Parker "51" Special Edition in one of its rarest finishes, the Empire State Building etched cap. There are almost limitless variations in Style and colour and two distinct filling mechanisms. pens. The colours of the Vacumatic Parker 51's and the Aerometric Parker 51's. Nonetheless, professional overhaul is a good idea, even for pens that seem at first glance to be in good working order. Parker decided to discontinue the Blue Diamond on the clips. Market prices are significantly lower already and the Deluxe might be one of the cheapest gold nibbed pens you can get right now.Nice review and I agree, the new 51s are much better than their reputation. A number was chosen because it could be used in any country, obviating barriers of language. An uncapped Demi is about 11.2cms long whereas the full sized 51 is 12.8cms, In 1947, Parkers factory in England also started producing 51s for the British and European markets and, with the Vacumatic filling system being seen as overly complicated, Parker worked towards a new type of filler which was longer lasting, more reliable and simpler to use. No risk of accidental uncapping and an inky mess. It's a very responsive writer, despite the tipping seemingly having a slight bit of baby's bottom. There are two easy ways to date the early Parker "51" . Aerometric fill. As an aesthetic nod to the original design, a metal ring just below the threads mimics the original clutch ring of the vintage 51. Twin Tassie Model with honey coloured jewels. Heirloom, all solid 14 k gold, two tone red/yellow lines Especially from afar, you'd be forgiven for not being able to distinguish between the old and new. These anomalies are most likely the result of pens having been sent back to Parker for repair, and since there were no more old stock, vacumatic filler sections and bodies were made from later aerometric coloured stock. The great majority of 51s were made in the USA at Parker's Janesville factory, but 51s were also produced in Canada and England; distinctively English are the Aerometrics with caps in rolled silver, along with those with rolled silver caps and barrels (watch for fakes: if the barrel is not marked "R. SILVER", it is almost certainly a gold filled barrel that has been plated). Rant over. I have to admit it's not as nice as the vintage arrow, and I find that the vintage-inspired design of the 51 would've warranted an equally vintage-inspired clip to go along with it. Fitted with the original 14kt gold super smooth medium tipped nib. The modern P51 has a comfortable section diameter around 10 mm where you hold it, but it is of course still a rather skinny penfor modern standards. Parker 51 Custom in Teal Green with gold filled cap. Fitted with the original 14kt gold super smooth Medium tipped nib. Its prodigious ability to trap ink makes the Vac-filling 51 a slow pen to empty. Parker also made 51s in South America at its factory in Argentina. As it stands now, only the Deluxe version gets one as standard. The first choice for a pen that is to be used on a regular basis providing a superb smooth writing stylewith unsurpassed reliability. Fitted with the original 14kt gold, super smooth medium tipped nib. Some 1946 and 1947-dated 51s bear date codes with a "T" prefix, which has led to (incorrect) speculation that the "T" stood for "Toronto" -- even though such pens are all clearly marked "MADE IN U.S.A." In fact, the "T" surely denotes pens from Parker's new Janesville production line, set up to meet postwar demand in the former Townsend Tractor building. Parker 51 Set in Grey with Lustraloy caps Fountain Pen and scarce Ballpoint. Unless otherwise noted, the caps are of Lustraloy, Parker's matte-finished stainless steel. Midnight Blue (aka Dark Blue) Plum (aka Aubergine) The MKII type 2 pens were not produced in this colour the Empire State in solid two-tone gold. Our most popular vintage Parker 51 pen is this Aerometric Mk1 with the Classic steel cap or the Custom rolled gold cap and rounded end to the barrel as shown here. here's also the rare button filled Parker "51" referred to as the Red Band, which was produced for a few months only from June 1946 until the end of 1947, and the Cartridge Filler Parker "51", produced 1958 until 1962. Care should be taken when buying a Demonstrator, since there are a number of recently made replicas floating around. In MINT Condition. The MK II can also be divided into MK II-A, with the longer clip cap, (identical to the MK I-B), the MK II-B with a shorter clip and MK II-C with an even shorter clip with fewer feathers and the "halo" logo on the cap.
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