I think I had one of those as a kid! It was perfect scale and the hammer would go back but had no spring, of course. So I would put a rubber band around the frame and hammer and fan it. Mine had ivory looking grips and a silver finish. I was into Revell 32 scale WW2 fighter plane models but can't remember assembling this cool Colt copy. I'm 56 if that fits the vintage of when these were available.