on my grandfather had a H&A break top revolver from what ive found its from 1890s thro 1920 or so now heres the sad thing all I have is the lower part. I don't have a cylinder or barrel and this kills me because its a family treasure. Theres no telling what happened to the top half or why the lower parts still around....Is parts impossible to find...idk wish I can find what I need....I think its an old police gun