I was looking at the markings on my K98 to find out more about

The reciever and firing pin were made at Mauser byf in 1939

The stock was made in 1935

The barrel was from a DMR (sniper rifle) from sometime between 1935-39

The bolt stop/release was made by Sauer

Everything else is unmarked or stripped of it’s markings when it was captured in the early 1940s