They resumed stamping the date code on the barrel on 10/1/01. They continued to mark the date code on the end flap of the shipping box. On 8/9/99, stopped stamping the barrels with the date code. One needs to be sure that the barrel is original to the gun before trusting the Barrel Code listing, above. Using these barrel codes to date a shotgun is somewhat unreliable, as shotgun barrels are often interchanged at random. Using barrel codes (such as those listed above) to date the manufacture are reliable on Remington rifles, as the company rarely changed barrels on a customer’s rifle. Serial Numbers by date (factory record book) – K – P – O – W – D – E – R – X Barrel Code Location Diagram Months of the year, for example B=January, L= February Auction: 13436854 Butler Derringer set 22 short serial B73550 B73549 in wood presentation case. The serial number starts with a 'B', which has me. I have come across a lot of Colt/Butler derringers, but they all have been of 22 cal. Near the frame that identifies the year and month of Geezer Butler / (320Kbps) mp3, Geezer Butler - The Invisible, Geezer Butler - Catatonic Eclipse, Geezer Butler - Man. USA I can not find any information on this derringer. Have a code located on the left side of the barrel

Butler derringer serial numbers