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If Anyone Could Identify What Model/version This Aeromatic Parker 51 Was?


mitto

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I have had this parker 51 aeromatic since 1991.The model/version of the pen , however , is not yet known to me.The cap n clip of the pen resemble, in design, those of parker vacumatics.Yet, these are 14 k gold filled.

The original sac guard/barrel of the filler was of the kind that is with the black plastic end having the inscription "...press ribbed bar 6 times...".Unfortunately that sac guard got broken while attempting to replace the puncured sac by a less experienced repaireman in Pakistan.I was lucky enough ,however ,to find a new sac gurad for my pen but perhapse of the later aeromatic mk 2 or 3 version with rounded end and withount the black plastic end part.The inscription on the replaced sac gurd reads "...press ribbed bar 4 times...".Also, the instructions on use of ink differ from those on th earlier one.

The nib of the pen has two rounded holes.One smaller near the tip and the other relatively bigger on the upper part with a squre cut further up.

The nib is inscribed "14 k gold...made in USA".

The date code, as I could read it, is " T MAM1" or " T MAMI".

 

I would b glad if anyone could help identfy the exact model/version of my Parker 51 aeromatic.

Here are some pictures of the pen as well as of the broken sac guard of its earlier filler.

Khan M. Ilyas

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The cap (or at least the clip) is wrong for an aerometric "51". The "6 times" original filler suggests a 1948-1949 pen, so there should be a date code imprinted in the barrel, near the clutch ring.

Edited by icardoth
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Thank you a lot....but it is hundred per cent guarented that the pen came withd the same 14 k gold filled cap ,clip and nib...No altration or replacement of cap, clip or nib was ever made...It is kind of a family pen obtanid from a relatve and family fried book seller in a small town where everybody knew of each others' "family trasures..And the pen was purchased by his father in early 50s in the same shape design and condition.So no confusion,whatsover, on this count...But you are right that this type of caps n clips were not used for the P51 aeromatic versions.

Moreowe,the line pattern on the cap is of 5 lines converging into one at the top of the cap which is again a patrern used only for caps of P51 vacs versions..The cap jewl is ,however,missing.

 

And as such wouldnt you agree to the possibilty that may be in the aerly aeromics versions some left over parts of the vacumatic 51 were used?

Further exledt opnions would be highly appreciated.

 

I woud definitely check for the date code as per ur suggestions and 'wojld vome back to yiu once agsin.

 

yhanks again..

Khan M. Ilyas

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I have had this parker 51 aeromatic since 1991.The model/version of the pen , however , is not yet known to me.The cap n clip of the pen resemble, in design, those of parker vacumatics.Yet, these are 14 k gold filled.

The original sac guard/barrel of the filler was of the kind that is with the black plastic end having the inscription "...press ribbed bar 6 times...".Unfortunately that sac guard got broken while attempting to replace the puncured sac by a less experienced repaireman in Pakistan.I was lucky enough ,however ,to find a new sac gurad for my pen but perhapse of the later aeromatic mk 2 or 3 version with rounded end and withount the black plastic end part.The inscription on the replaced sac gurd reads "...press ribbed bar 4 times...".Also, the instructions on use of ink differ from those on th earlier one.

The nib of the pen has two rounded holes.One smaller near the tip and the other relatively bigger on the upper part with a squre cut further up.

The nib is inscribed "14 k gold...made in USA".

The date code, as I could read it, is " T MAM1" or " T MAMI".

 

I would b glad if anyone could help identfy the exact model/version of my Parker 51 aeromatic.

Here are some pictures of the pen as well as of the broken sac guard of its earlier filler.

If the original sac guard says "use Superchrome ink", then it is before 1957. If I am not mistaken, that plastic piece on the end of the broken filler guard indicates that it is a mark I pen, meaning that it was made before the mid 60's.

Parker 51 Aerometric (F), Sheaffer Snorkel Clipper (PdAg F), Sheaffer Snorkel Statesman (M), red striated Sheaffer Balance Jr. (XF), Sheaffer Snorkel Statesman desk set (M), Reform 1745 (F), Jinhao x450 (M), Parker Vector (F), Pilot 78g (F), Pilot Metropolitan (M), Esterbrook LJ (9555 F), Sheaffer No-Nonsense calligraphy set (F, M, B Italic), Sheaffer School Pen (M), Sheaffer Touchdown Cadet (M), Sheaffer Fineline (341 F), Baoer 388 (F), Wearever lever-filler (M).

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I'm curious about how he broke the sac guard?

 

Glenn

It was threaded and he broke it trying to release it from the connector.

I can't tell from your pictures if the clip has a blue diamond or not. If it has no diamond then the clip does not belong on the cap. The clip may have come with the cap but the cap likely didn't come with the pen. Parker discontinued the use of the blue diamond clip well before the end of the 51-Vacumatic run ended. We see many long-arrow clips on vacumatic filled 51s.

 

While it is possible this pen left the factory with the cap, I would find it unlikely at best.

San Francisco International Pen Show - The next “Funnest Pen Show” is on schedule for August 23-24-25, 2024.  Watch the show website for registration details. 
 

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If the original sac guard says "use Superchrome ink", then it is before 1957. If I am not mistaken, that plastic piece on the end of the broken filler guard indicates that it is a mark I pen, meaning that it was made before the mid 60's.

yes,the original sac guard said "...press ribbed bar 6 times ....use superchrome ink".Yet the question is did they they use such kind of caps and clips for the aeromatic 51s too? I think the pen is a case of some un-resolved anomally...Thanks qanyway..

Khan M. Ilyas

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It was threaded and he broke it trying to release it from the connector.

I can't tell from your pictures if the clip has a blue diamond or not. If it has no diamond then the clip does not belong on the cap. The clip may have come with the cap but the cap likely didn't come with the pen. Parker discontinued the use of the blue diamond clip well before the end of the 51-Vacumatic run ended. We see many long-arrow clips on vacumatic filled 51s.

 

While it is possible this pen left the factory with the cap, I would find it unlikely at best.

No,the cap doesnt have a blue diamond.As to the suggestion that the clip may have come with the cap but the cap likely didint come wid the pen,I would only add that the cap perfectly fits the pen.And, as I understand,caps of vacumatics did not and do not fit the aeromatics...Am I not correct?

Khan M. Ilyas

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This is fascinating! I bought an identical pen on Ebay a while ago, complete with jewel in the cap. I had assumed that the wrong cap had been added at some point and more or less ignored it. However, in light of this string, I compared it more carefully with my other Aerometrics and Vacumatics. The clutch ring on the barrel is the same diameter on both models, and the caps of the Vacumatics and Aerometrics fit on this barrel in the same position within tolerance (ie. the variation in position of both types of cap lie in the same small range). It would appear, therefore, that the cap on this pen is the same as other caps from Vacumatics and fits the same as them and other caps from Aerometrics on the same barrel. It is, of course, possible that even with a pedigree from point of purchase as appears to be the situation in your case, the store itself where it was bought could have matched a Vacumatic cap with an Aerometric barrel if they had a new pen with a damaged cap. This is more likely with a first generation Aerometric when the earlier Vacumatic versions would still be around.Just guessing. As for mine, a mis-match could have occurred at any time!

Edited by Osmaroid
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No,the cap doesnt have a blue diamond.As to the suggestion that the clip may have come with the cap but the cap likely didint come wid the pen,I would only add that the cap perfectly fits the pen.And, as I understand,caps of vacumatics did not and do not fit the aeromatics...Am I not correct?

Aerometric and Vacumatic caps are interchangeable between the full sized pens.

The clips are generally interchangeable as well.

From Ernesto's website:

 

In mid 1947 Parker discontinued the Blue Diamond guarantee due to an FTC ruling against lifetime warranties. With this ruling Parker redesigned the "51" to closely resemble the first arrow clips on the Vacumatic pens. The caps were also changed, where in all instances the word "Parker" was added to the cap band. Some of the cap patterns from the Blue Diamond era carried over, and some brand new patterns were created (see the "Caps" page for details). All pens were still available as single or double jewel, in the same range of colors. It must be note that although a Blue Diamond cap is technically not correct on a late 1947 or 1948 pen, one does find plenty of pens with this combination. This is no doubt the result of Parker and dealers accomodating customer's preferences from stock at hand. In addition, over the years, a pen such as the Parker "51" with easily interchangeable caps and collectible, will end up with a wide variation of switched caps.

 

Split arrow clips (the ones that have PARKER on them) without a diamond most likely came from a Vacumatic, there are such Vacumatic clips that will fit.

 

It isn't a big deal, I know many people that put Vac caps on Aero pens because they like the look. I know just as many people that do the opposite.

San Francisco International Pen Show - The next “Funnest Pen Show” is on schedule for August 23-24-25, 2024.  Watch the show website for registration details. 
 

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I have gone to Ernesto's cite n have found the cap that is on my pen.further, it is captioned as COMMON CAPS..

 

The full caption of the pics says:-

 

 

Gold Filled caps with gold filled clips. Line pattern of group of five lines tapering up to one point near the clip, repeating all around the caps, and plain cap bands. Gold filled content at bottom of caps. These caps have deep engraved lines unlike the later aerometric series tapered line caps.

 

 

Common Caps

 

It is, however, to be noted that the cap on my pen is without a blue diamond like the upper one of the two in the picture taken from Ernesto's cite..

 

further comments and opinions would be appreciated...

Khan M. Ilyas

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Does your clip have an unpainted diamond or NO diamond?

San Francisco International Pen Show - The next “Funnest Pen Show” is on schedule for August 23-24-25, 2024.  Watch the show website for registration details. 
 

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I would check. Take pictures , if possible , and come back to you.Am at work now and the pen is not with me...

Thank you for taking interest.

Khan M. Ilyas

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That's a cap without a diamond.

 

Date code "T MAM1 or T MAMI?" I suggest you read the parker51.com site for date codes. Likely to be 8 or 9 with or without dots around the number, indicating 1948 or 1949, but read the info on parker51.com.

"Don't hurry, don't worry. It's better to be late at the Golden Gate than to arrive in Hell on time."
--Sign in a bar and grill, Ormond Beach, Florida, 1960.

 

 

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Unfortunately, you have a marriage of parts, one ways or another. That is definitely an aerometric cap and is not the same as the one you pictured from my site. The only clip that would have ever been fitted to that cap would be the plain arrow clip. Why? The cap band has "Parker" on the band and thus, a clip with "Parker" would be redundant. Once Parker switched clips to the plain arrow, the brand name was also moved...Furthermore, that clip did not come from a 51 vac. It is came from a Parker Vacuamatic. The diameter of that clip ring is to big to accommodate the taper of the 51 cap. The difference is slight, but it can easily be seen in your pictures that it does not fit well.

 

Ernesto

parker51.com

Ernesto

 

"Like a Pen from Another Planet"

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Dear FarmBoy,I am waiting for your response.

I see Ernesto beat me to it.

 

Wrong clip on that pen as I suggested earlier.

 

It happens but if you like the look don't worry about it.

 

FarmBoy

San Francisco International Pen Show - The next “Funnest Pen Show” is on schedule for August 23-24-25, 2024.  Watch the show website for registration details. 
 

My PM box is usually full. Just email me: my last name at the google mail address.

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Unfortunately, you have a marriage of parts, one ways or another. That is definitely an aerometric cap and is not the same as the one you pictured from my site. The only clip that would have ever been fitted to that cap would be the plain arrow clip. Why? The cap band has "Parker" on the band and thus, a clip with "Parker" would be redundant. Once Parker switched clips to the plain arrow, the brand name was also moved...Furthermore, that clip did not come from a 51 vac. It is came from a Parker Vacuamatic. The diameter of that clip ring is to big to accommodate the taper of the 51 cap. The difference is slight, but it can easily be seen in your pictures that it does not fit well.

Ernesto

parker51.com

Well , thank you Ernesto. I truely feel indeted to you. Thank you once again.

Khan M. Ilyas

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