There is a nickel plated Remington .41 rimfire derringer for sale at Tiger Mountain Cutlery in Mountain City, GA. (706) 746-3705. I saw it last Monday. The top hinge is not broken. I do not know which version that one was, it has to do with the way the company name is printed on the top of the barrel. These guns were made up until the 1930's IIRC.