There are serial number tables that have been published.
You will need to contact Walther to find out.
Need to know what model and caliber.
Germany. 1970's or so
Impossible to answer withou a serial number and DETAILED DESCRIPTION of all markings.
Someone at the p38forum.com might be able to help you.
Someone on p38forum.com might be able to help
Need a detailed description of ALL markings.
Serial number and or proof marks
send me the serial number and I might be able to tell you when it was made..............
Your question does not include if there are any german military markings associated with this P-38 pistol.That being said and the high serial number,I would assume that it was made after 1945.It could be made by Walther any time there after.You may want to contact Walther directly and see if their customer service dept may be of some help.
There are 3 dates that your Walther P38 could have been made.If it has a date of AC 1942,then it was made in december 1942.If it has AC 1943,then it was made in september of 1943.If it has AC 1944,then it was made in november of 1944.