6/17/20 - This is an original Mauser Luger magazine made in 1937 during the transition between droop eagle/63 proofs and stick winged proofs. We can tell this by the blued finish on the tube, and droop eagle/63 proof on the base. The base is also serial numbered and stamped with a "+" sign. The tube has discoloration and wear throughout. Most of this is surface patina and dark browning from age. Still fully functional with a strong spring.