Walther used a 2 letter code stamped on the gun. Letters A-K (no letter J ) corresponded to 0 thru 9. 1967 would be JH for example.
You will need to contact Walther
You will have to contact Walther to find out.
You will need to contact Walther.
1938
@1944
You will can contact Walther, but probably 1943-45.
Impossible to answer without the serial number.
70-85
@ late 70's
Roughly 1940-1945
Possibly late 30s
Dieter Marschall's book has serial number data in it. Probably 1945.