>>956853>you can find a 2000 year old Roman coin next to a piece of anti aircraft shell casing from the second world war.I envy you that history. I do think it's weird how age doesn't necessarily determine value. I have the same situation to some extent.
Most of the really valuable stuff I find is relatively recent bottles and saloon drink tokens. I get a few thousand dollars a year selling those.
My more typical finds are way more interesting but not nearly as valuable.