[Keiser77]

Just want an idea of what I have here. I have no paperwork and nothing else but what is in the pictures. I would like to know what significance (if any) the small engraved emblems mean and how to figure out if it was used/carried by an officer in WW2. I know little to nothing about guns and only recently found out my father has this gun from my grandfather. I appreciate any help that can be given.