A number of years ago I owned a high grade double hammer, engraved on the locks, "Samuel Buckley". The top rib was engraved," John E.Long Detroit." The gun serial # was 5709.The action of the gun incorporated the William powell patent #1163 of 1864,which is their lift-up lever, snap action.
As a follow-up, whilst in Birmingham ,I visited Powell,s who confirmed it was 1 of 5 guns made For Samuel Buckley and Co; of Detroit.If your gun has a serial number that is close to 5709 its origin may also be Powell,s!
Buckley is a name that is record as being active In the Birmingham trade. It is possible that the Buckleys emmigrated to Detroit and that H.Buckley was a partner in the firm of Samuel Buckley & Co;?


Roy Hebbes