Dating Parker (Duofold) From The Nib Code..?

[twingall1]

Hi,

I'm trying to date this parker duofold, Can't find any material on the nib code which helps me to do this. Any help would be much appreciated. Also, i'd like to know how to read the number&dot code on the nibs of some old parkers.

 

Nib has standard markings (parker, 14CT made in england) and at the base has:

 

15 4

. . .

Many thanks!

 

http://i.imgur.com/B3VbvTGl.jpg

 

http://i.imgur.com/P1m2Crnl.jpg

 

http://i.imgur.com/nj0kadol.jpg

 

[Paul80]

Hi

 

The English made aerometric duofold was introduced in 1953 and the 15 on the nib should be an indicator that yours is a Demi, unless the nib has been changed at some time.

 

Hope this has been of help and accurate, others will correct me if I am wrong.

 

Paul

[BT-7274]

A bit of a guess, but if Parker followed the trend from the 51, I'd guess it was made in 1954, during the first quarter of the year. Of course, I could be completely wrong and the 4 could be something totally different like the nib size. Grain of salt.

[twingall1]

Thanks for your responses,

 

just one question- what is a demi?

[fabri00]

Mean half long.