P38 magazine:

Mauser P.38v with E/WaA135 

In early 1944, Mauser changed to a new acceptance stamp. The previous E/135 was abandoned and then replaced with E/WaA135. Magazines were similar in every way to the previous variations (P.38v E/135); only the acceptance stamp was now replaced by the newer version.

The magazines produced from January 1944 until November 1944, were stamped with P.38v on the left side of the housing and with E/WaA135 on the spine