Mike:
The only reason I would guess the 1887 on period was that I assumed it had steel tubes but it doesn't have the "12C" in a rhombus. Just by the marks on the Damascus tubes, I would again guess 1855-1875 which would include the 1867 Purdey bolt date as well as the 1865 Scott Spindle date and steel butt plates were used then. But it doesn't have those large all or nothing firing pins w/ the percussion fences. If from around 1870 it may not be a conversion? What type forend does it have?
13 bore just happen to be the plug gauge that went the entire length.
Kind Regards,
Raimey
rse
Last edited by ellenbr; 05/08/08 07:59 PM.