Mid to late 40's
Deiter Marschall's book has Walther sn data
Try the P38forum
its was a standard pistil in world war 2 so ide say around 50 years
MOD P-38 are reported starting with Serial 24093 and ending with 25812. Approximately 1800 were produced and all were marked Crown over N. This designates they were manufactured for commercial sale and not military use.
1976
1973
No way to answer without the serial number.
1950-52
27 years old
It was manufactured in 1924.
1956.
No such model number.