I recently purchased a 16ga Clabrough & Johnstone and wanted to find out more about it. It looks to be fairly old, it's been hunted but in good shape. How can I tell the age of the gun and what proof marks will tell me the choke? I suspect it's full & full? It says "choke" under each barrel. The left barrel has a "cc" over the word "choke". Also, I see "C16.8", 17/1, two crowns w/ what looks like "BP" above, a diamond w/ "16 O" inside and the number "1326 g" How do I tell if it is proofed for 2 3/4" or 2 1/2" shells? It also says "NICHT FUR KUGEL".
Any help or direction would be appreciated.
Thank you.
