Hard to tell from pictures, & it seems everyone has a different opinion, but based on what I can see, it appears to be a 22 Combat Masterpiece (model 18), or possibly a model 17 that has had the barrel cut. Condition appears to be about 75%, & I believe the grips are plastic (fake pearl). Based on what I can see, I would place value at about $250.00. It may not be as old as you think, either. With a little more info, it can be pinned down, but it doesn't really matter much in the condition it's in. My opinion only!