I have aquired a semi, compact handgun that was brought back from germany after WWII, I am not sure of cal. but it looks smaller than a 9mm and bigger than a .22. The only markings on this gun is, S# 74377, Geco and has a circle with a P inside with a small crown topping the circle. It is Blue Steel with a brown Grip Any ideas on what cal? or information on this gun and or history? The closest i could find was a geco 9mm that looks a little like it but not compact that was used by german police post WWII.