I found 3 Mercuries and a 35 buffalo in the same park this year and a mercury there last year. And a 100-dollar bill on a money clip this year in this same park!
I've only found a silvers in tot lots, first one must have been a modern drop, in the wood chips under the swing with a modern quarter, some kid just had a silver dime Second one was also in a tot lot, I think the sand they used was from somewhere old, I found a 1940 penny, 1962 dime, and a 1965 nickel in the sand around the swings