I have a rifle made by Silas Allen of MA in 1829 which was converted to percussion sometime later. The lock is a Parry, Warranted and needs a hammer and lock assembly. I've searched the internet and find no "warranted" locks by Parry. I'm trying to fix it up for display only and would like to keep it historically accurate. I have found some very close locks but not close enough...asking here if anyone has come across a Parry "warranted' lock.