Maybe (most likely IMO) a rack number for a former LE firearm.
Manufacturer serial numbers may overlap with other items in police inventory.Never understood that. Is it too complicated to just use the S/N? Rhetorical question, not directed to you.
Manufacturer serial numbers may overlap with other items in police inventory.
Or heck, even other guns in the pre-1968 GCA era. Back then, you might also have things like store brand shotguns that didn't even have serial numbers.
I have good old W 3642 right here, affectionately known as Pigpen. Check my avatar.Picked this up in April. I’ve posted it before but thought maybe someone would recognize the stamps View attachment 755727View attachment 755728