I have Just bought this pistol and a s&w squeezer. the only marking on the pistol is 48 on all the parts. it is a six shoot revolver do not know what cal. but 32 will go in a little bit was thanking mabe 30 luger. the gun seems to be ether old or vary poor made. thanks for any help i can get. photos are to large to show. also it has 3 dots on every part, and a u turned on it side with two r's stamped behind it. thanks.