Thanks for the lead Sharptail. I can always use an excuse to buy another book ( or gun ).
I think I may have to scrape together a few more IQ points and try to post a photo. I haven't tried to do it yet.
The gun is a 12 bore, boxlock, 27 inch barrells choked full and 1/2 of "Sir Joseph Whitworth's Fluid Compressed Steel". This gun was built for rough shooting and has a full crossover stock, which fits me perfectly. I'm right handed, left eye dominant. The chambers are 2 5/8" and I shoot 2 1/2" Gamebore paper cartridges.
I hunt with it sparingly, the left barrel is only 15 thousands thick (thin?) on the outside edge and I don't want to dent it. There is no room to raise a serious dent. The barrels are both perfectly sized internally, so as far as I can tell , it is still in proof.
The gun is in a typical English oak and leather case that in decent shape, considering it is ~100 years old. There are traces of steamship labels all over the case, I wish the label were still there so I could know a little more about where it went.
The maker's label is still mostly intact, and it mentions the Japanese contracts.
Any idea who might have Pape's records? I have Boothroyds directory, but it doesn't say if another maker acquired the company.