I am new to this site, however I need some help. I have a very nice revolver that was handed down to me from my grandfather, and I do not know alot about it. It a .22 long rifle CTG, seems to be factory engraved, adjustable rear sight, fixed front sight. Serial # 3250XX then has a large space then a letter B. Can anyone help? I will try and attach a pic. the best I can tell from doing some research is that it is a K22???