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Long & Short Clip Aerometric 51

Offret

By Offret
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Offret Near Mint

Offret

Posted
Posted

Does anybody have a side-by-side comparison picture of two 51 Aeros; one with the pre-1950 long clip and one with the post-51 short clip? Thank you.

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FarmBoy Museum Piece

FarmBoy

Posted
Posted

Clever. Can anyone pass Mittto's test?

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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mitto Museum Piece

mitto

Posted
Posted (edited)

Clever. Can anyone pass Mittto's test?

 

:)

 

Yes, the tests...not one but two.

Let us see if somebody comes forward to test her/his wits.

Edited by mitto

Khan M. Ilyas

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sanesangowdayya Mint

sanesangowdayya

Posted
Posted

Interestingly I've got two two 51 demi's, one is an aero and one is a vac. One is thinner and longer, the other is shorter and girthier, and the caps do not interchange which had me confused. But I suppose a pen that lasted so long in production ought to have different versions.

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mitto Museum Piece

mitto

Posted
Posted (edited)

Interestingly I've got two two 51 demi's, one is an aero and one is a vac. One is thinner and longer, the other is shorter and girthier, and the caps do not interchange which had me confused. But I suppose a pen that lasted so long in production ought to have different versions.

 

The vac demi is the same diameter/girth as the standard vac (and standard aero) but shorter. And, hence, the cap would fit the standard 51 but would be shorter. The aero demi is both thinner as well shorter than the standard 51 both aero and vac. And, thus, the aero demi cap would not fit any other version 51.

 

Enjoy your demis.

 

PS.

Don't ever sell your vac demi.

Edited by mitto

Khan M. Ilyas

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Chrissy Museum Piece

Chrissy

Posted
Posted

:)

 

Yes, the tests...not one but two.

Let us see if somebody comes forward to test her/his wits.

 

I have an idea but am only going to say that I think one is a plum (demi size?)

 

I have a 1948 blue vac and it came to me unrestored with no clip. I restored it myself after having bought a special brass ring tool plus a replacement pump assembly. I then bought a chrome clip while I was in the US, not even knowing, at that time, there were two clip lengths. So very sadly my cap now has a shorter clip than it should have. I have never dared to try to correct my mistake in case I just repeat it again. :(

 

I can therefore confirm that you can't tell a clip length unless you have two side by side. -_-

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sanesangowdayya Mint

sanesangowdayya

Posted
Posted

The vac demi is the same diameter/girth as the standard vac (and standard aero) but shorter. And, hence, the cap would fit the standard 51 but would be shorter. The aero demi is both thinner as well shorter than the standard 51 both aero and vac. And, thus, the aero demi cap would not fit any other version 51.

 

Enjoy your demis.

 

PS.

Don't ever sell your vac demi.

Is there something special about vac demi's? I know they weren't made for very long, but I have a few (and sold a few) and they have cycled in and out of my collection.

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mitto Museum Piece

mitto

Posted
Posted (edited)

I have an idea but am only going to say that I think one is a plum (demi size?)

 

I have a 1948 blue vac and it came to me unrestored with no clip. I restored it myself after having bought a special brass ring tool plus a replacement pump assembly. I then bought a chrome clip while I was in the US, not even knowing, at that time, there were two clip lengths. So very sadly my cap now has a shorter clip than it should have. I have never dared to try to correct my mistake in case I just repeat it again. :(

 

I can therefore confirm that you can't tell a clip length unless you have two side by side. -_-

:)

Sorry to say you failed on two counts:

 

1) All three pens are Standard size.

2) The longer one is the Plum (1948). With a period correct brand new NOS transitional gold cap that has good tight clutch and hence a tight fit and making the pen look a bit longer. (The pen originally came with a lustraly cap).

 

And there is another test. :)

 

What does the (tapering) CLIP shape on the pen in the middle hints at?

 

:) :)

Edited by mitto

Khan M. Ilyas

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mitto Museum Piece

mitto

Posted
Posted

Is there something special about vac demi's? I know they weren't made for very long, but I have a few (and sold a few) and they have cycled in and out of my collection.

You wouldn't get even the price of the parts in them if you sell them. :) :)

 

The nib, the collector, the feed and above all the vac filler. So don't sell them. Use the parts in you needy standard 51s.

Khan M. Ilyas

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baz666 Extremely Rare

baz666

Posted
Posted

(snip)

 

And there is another test. :)

 

What does the (tapering) CLIP shape on the pen in the middle hints at?

 

:) :)

 

 

U.K. only Transitional Vac / areo clip.

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