3/24/20 - This is an original G Date Luger magazine. The serial number is in the range of 1935 Lugers. Would also be acceptable for a K Date Luger. The base is B/90 proof stamped. Excellent condition overall with minimal wear. No corrosion, pitting or rust. Excellent, strong spring. The base is serial numbered "7788" and B/90 proof. Very rare and collectible magazine.