I'm trying to get info ona revolver. The only markings are "32/20 U.S. service ctgs on barrel. On the frame it's marked "Made in Spain". The serial # is 33503 on the butt frame. Is there any value to it and would it be safe to fire? Thank you! View attachment 523730 View attachment 523731 View attachment 523732 View attachment 523733 View attachment 523734