Check the listing for details. WALTHER P38 MAGAZINE AC41 2nd Variation d Block WaA359 Serial # 7525 d. Condition: Used. Listed at 400.00 USD. ORIGINAL P38 MAGAZINE NUMBERED TO 7525 d block The marking P.38 is stamped on the left side of the housing and two German E/359 acceptance stamps can be found on the spine. The bottom stamp is located on the center line. No other magazine marking changes were made until the start of 1942. The mag belongs to an ac-41 with serial number 7525d All ac41 magazines are stamped with serial numbers of the pistol on the toe of the floorplate. The serial number indicates that this magazine was produced in early 1941. Till the beginning of 1942 Walther stamped all the magazine parts (except for the spring) with the E/359 inspection stamp .As with all gun parts, they must be checked and installed by a competent, and qualified gunsmith, and I assume no responsibility or liability of any kind or any misuse, or improperly checked or installed gun parts.