Year of Manufacture help. Archived Message Posted by Dale Medders on July 27, 2016, 9:31 am I have a 12 ga hammerless O grade. Serial # 49307. Has Damascus barrels and barrel lug disc and pin. Looking up serial number shows it to be made in 1922. Wouldn't this O grade with Damascus be pre 1913? Thank you. Message Thread: Year of Manufacture help. - Dale Medders July 27, 2016, 9:31 am Re: Year of Manufacture help. - H. McMurchy July 27, 2016, 10:35 am Re: Year of Manufacture help. - Dale Medders July 27, 2016, 5:33 pm   Searching