So my father has a 12 gauge single shot h&r topper break action with a serial number that puts it as dating from 1979 (iirc). Seems to be in good shape... Finish has dulled with maybe a hint of surface rust (stored in q climate controlled closet the entire time) but the trigger pull is still crisp, pivots open smoothly, etc. However, it hasn't been shot in probably a decade or two. So the question is, is it safe to fire? I assume so, but since I don't know much about shotguns I figured i'd ask first. I've heard one too many stories of people finding revolvers in attics and having them blow up on them I guess.