Walther P38 - Spreewerk Factory
* "P.38 cyq (serial #)" - The letters cyq was the manufacturer's code assigned to the Spreewerk factory in March, 1941.
* "P.38 cvq (serial #)" - Some collectors theorize that cvq stampings are due to the tail breaking off the y in the cyq die, other collectors theorize that cvq is a legitimate code.
Spreewerk serial numbers are limited to four digits and a letter suffix but they did not start over at the beginning of each year and there is no year marking