10/3/18 - This is an original "122" code Luger magazine with an aluminum base. The magazine is rare and desirable because the base has never been numbered. No signs of grinding / flattening on the base either. The frame has a "122" code and two eagle/37 proof stamps. I believe these were used for Lugers made between 1940 and 1942. Minimal wear on the tube, no rust or pitting. Guaranteed original and authentic.