Need Help Looking For A Replacement Cap For A Pen!

[sumoshogo]

Hi! I know this is a bit of a long shot, but I thought it worth a try... I have a Dunhill Namiki pen thats missing its cap, so I'm looking for a replacement. The pen is a 1930's 'Balance Model' of the size that typically takes a number '3' nib, sometimes a number '2' nib is fitted. The cap should be without metal rings, but it can be with or without a clip, and with or without the scored ridge. It can be Dunhill, Namiki or Pilot. The length of the cap should be 6.7 cms, outside diameter at cap opening 1.25 cms, inside diameter 1.15 cms. The length of such a model pen with the cap closed is 13.2 cms. Attached is an example of the same size balance model, and a pic showing the threads on the barrel. Maybe someone has a poor condition Dunhill Namiki pen where the maki-e work is badly worn? - I'd be happy to buy at a good price so I can 'borrow' its cap! Or happy to buy the cap alone as a part.

Alternatively, if anyone knows of any pen turners who can make a cap for the pen, please let me know... the problem is I dont have a cap to be copied/replicated, the pen turner would have to work only from pictures.