for the newbies - or just part time water/beach hunters or even veteran TH'ers that don't know
if you hit a place and you find the old brass bathing suit buckles (rectangular pieces in pic) - old brass beach tags ( 3 round items in pic) or old brass bathing cap snaps =
you are in an old area - once WWII started - companies were not allowed to use brass for such frivolous items - so your looking at stuff
like pre 1940s - every where Ive found these brass items - Ive gotten old silver and old gold = at least 99% of the time