[Researcher]

I don't know if any of this may help or not.

Lock Mechanism from 1905 catalogue.jpg

Bolting from 1905 catalogue.jpg

Patent No. 767,557 page 1.jpg

Patent No. 796,119 page 1.jpg

Looks like a C-Grade I haven't previously recorded. If you don't mind, could you post or PM me the specifics -- barrel length, grip style, serial number, etc. Has it been restocked? Generally the C-Grade didn't have checkering on the stock cheeks.

1905 Catalogue Grade C.jpeg

Ad showing C-Grade.jpg

454 06 Left Close.jpg