this is so cool! When I was a kid I would save wheats, mercs and bicentential quarters. I had no idea about silver of course or I would have saved all silver I found but I spent much of these coins at some point. I thought I had spent them all. Then I got a call from m mom this morning. Turns out that I stuck a bunch of wheats and 23 mercs into a little sack and asked her to hold onto them for me. I had a few hundred of them at some point (which hints at how much actual 90% I could have saved had I only known) and atleast one franklin. Had some kennedy halves as well but I dont remember years.
the sack of coins was accompanied from a note from my young self... "these might be worth something someday". Apparently I had made my mom save them for me. I dont remember doing it, but it sure was neat. Looking back at the level of mercs I used to find there must have been a ton of silver in circulation in the 80s.