Hunting in a local ball park that is not old enough to have silver coins but figured someone would loose jewlery. I did fine a couple of pieces but turned out to be junk. Always excited when a ring turns up even if it is crap. The rusty "rivet heads" were one of those thing that kept giving a signal to dig and found these. After cleaning them up I found out why, aluminum washers under the heads. Found some keys and a lock but they don't match, lol! Lots of clad but nothing great but i'm still impressed with the E-trac. The more I use it the more I learn it. All the coins gave solid hit in the "11" range. I'm running the factory coin program but changed the pattern to a custom pattern that has the coin and jewlery combind.