All magazines provided with the 0-Series P.38 pistols were stamped with the respective serial numbers of the pistol on the left side of the magazine housing. The P.38 marking found on most of the Walther magazines was not applied on these early 0-series magazines.
Every pistol was delivered with one spare magazine. These spare magazines were stamped with a suffix + after the serial number. All smaller magazine parts (floorplate, floorplate retainer, and follower) for the 0-series were individually marked with the German acceptance stamp E/359. Nonetheless, three different magazine variations for the 0-series pistols exist.
A 2nd variation 0-series magazine is shown below. It has two Walther E/359 waffenamt stamp on the bottom of the spine in a stacked position. The floorplate has a circular notch.