I've attached an image of an IBM M1 Carbine with interesting markings. The barrel has "BNP" under what looks like a crown and "F" and "O" in crossed flags or swords. There's an "HL" stamped in the sling recess in the stock. There's a unit disk in brass on the opposite side of the stock. "AMCO" is stamped on the barrel band. Is it a Brit lendlease or perhaps Canadian?
Any ideas?
Any ideas?