The question can't be answered without a sn and a detailed description.
5000$
You will need to contact Walther to find out.
Military P38s are dated from a 3 letter code, and not a serial number.
Rupan sansei Walther P38 - 1997 TV is rated/received certificates of: USA:PG (DVD rating)
1961
Two. Walther and Mauser
250 or so
Neither, it is a Walther.
Yes.
Dieter Marschall's book on Walther has sn data in it.
Try posting at p38forum.com
about as much as your mother is to me!