The proof marks on your gun indicate that it was proof tested some time between 1925-1954.The 13/1 indicates that the bore diameter at proof,measured between .719 and .728 diameter.
12/C indicates 2 1/2 inch chambers. Maximum shot load for this gun is 1 1/8 ozs; corresponding safe breech pressure is 6720 p.s.i.maximum.
I have a pre 1900 Midland catalogue, in this era all Midland box locks illustrated have a Greener cross bolt. Their most expensive box lock in this catalogue was priced at 20 pounds stirling.
Ownership of crests can some times be traced using the book ,Fairburns Crests.
Last edited by Roy Hebbes; 06/18/13 12:11 PM.
