Need the experts help here!
My grandfather has had this Luger for years, I'm looking to purchase it, but have no clue what it's worth, or really anything about it. All he knows is it's "7mm", which I'm guessing he means 7.65x21 parabellum, and he can't find the magazine.
http://imgur.com/a/xIs8m
Here are some cell phone pics I was able to grab. Any other details you experts need?