1 hour 20 minute hunt at a school. Figured it to be built maybe 1960s. I wasn’t finding too many coins: 1 quarter, 1 dime, and 4 pennies. Then over at the rock garden got a faint, clear signal at about 2.5″. Surprised to see the Merc come out: 1916s. I’ll clean her up and sell it on ebay as I could use some extra cash. They seem to be going for about $5-20 depending on condition. HH.