This update occurs after the LA Pen Show I did not attend. Nevertheless I was able to add some new material thanks to several contributions from people:
Francis Meinhardt provided pictures of an engineering prototype 75 desk set with pens in sterling silver with crosshatch grid pattern. Also a fountain pen section with an unusual white plastic gasket instead of the normal black. In the ephemera section you will also find another 75 advertisement and Parker documentation of hallmarks used in 75s and Premiers.
Kazuhiko Inoue provided images of a Canadian sterling silver grid FP, matching the BP that I added in the last update.
On behalf of our pen community I thank them for their generosity.
As always, I welcome your feedback/criticisms on this site. I am always interested in hearing from you, especially if you have some 75 that you don't see here. Even better if you want to sell it to me. If you are looking for a particular 75 or have need of parts, drop me a note. I might just have it. Send me email at the LTW@Parker75.com address.
Thanks for visiting.
Here are the new items in the Parker 75 Reference section.
Another variant of the solid 14K unknown model with the Imperial pattern
Refreshed pictures for several models: