I was asked by my Dad to ID a pistol for him, The only ID markings on it are a 7... The rest is pitted, The other side has "PS" on it. From the looks of it I believed it to be a Tokorav varient or another combloc firearm due to the rounded end of the slide and the shape of the pistol grip. I believe that the pistol may be a .25 caliber from the size, it is hard to deduce from a photo. I am hoping others are more knowledgeable than I am. I am not afraid to ask for help.) I was told that it is a pretty old gun.