3/21/18 - This is an original Mauser 135 proofed P.38 magazine. The spine is eagle/135 military proof stamped. The left side of the frame is P.38v stamped. There are no other markings. The bluing is thinning on the magazine and there is speckling wear throughout the frame. There is also some browning / patina. The spring is strong and fully functional though - overall guaranteed original.