Hi guys, I have been lurking on this site for a while, and this is my first post. I have some questions for you esteemed gentleman. My dad gave me an old K-22 type revolver recently, and I would like to know about it. It is a six shot double action revolver with a six inch barrel, serial number 638240 on the butt bottom and on the rear face of the cylinder. On the top of the barrel it says Smith & Wesson Springfield, Mass. U.S.A. Patented Feb. 6 06 Sept 14 09 Dec. 29 14. on the right side of the barrel, it says .22 long rifle ctg. on the left side Smith & Wesson. Onthe right side of the fwd. frame below the cylinder Made In U.S.A. It has adjustible sites. Blue is 50-60% with some small pitting. I would appreciate any and all info that you might have including approx. worth. Thank you in advance. Bill Willyjohn@rraz.net