@ late 70's
You will need to contact Walther
You will need to contact Walther.
You will have to contact Walther to find out.
You will can contact Walther, but probably 1943-45.
@1944
1938
Impossible to answer without the serial number.
70-85
Roughly 1940-1945
Possibly late 30s
Dieter Marschall's book has serial number data in it. Probably 1945.
Someone at P38forum.com might know.