I don't know if this is the right place to post this but I guess it can be considered a handgun. From my earliest memories as a child my Dad had this air pistol and it didn't work because the pump packing was worn out. He had several tubes of .25 caliber lead shot for it ( my brother and I used them in our sling shots ). There is no name on it that I can find. I believe it was made before WW2 as the first time I saw it was probably around 1949-50.
Larry