Re: KIRT JEAGER MAUSER
Kurt Jaeger was a well known German engraver. His shop engraved a lot of guns for American services personnel in the post-WWII period. As to whether the gun is commercial or mililtary, there is no way to tell from those pictures.
AFAIK, there was no connection between Kurt Jaeger, of Mainz, Germany, and Paul Jaeger, of Jenkintown, PA, the American gunsmith whose shop specialized in sporterizing ex-military rifles in the 1940's and 1950's. Searching Kurt Jaeger is difficult as the name is quite common, both in the U.S. and Germany.