11/28/18 - This is an excellent, all original and scarce non-numbered Luger magazine. The magazine has an aluminum base with no serial number or proof marks. The frame is blued and excellent condition. There's a 122 code and two eagle/37 proofs on the left side of the frame. The right side of the frame has a light laser-etched serial number of some kind, but this is a minor takeaway. Guaranteed original and authentic.