Out with a friend for two hours using our Multi Kruzers, mine with stock coil, 5 Kz. First target after a few minutes was a 1970 Trinity Junior College sterling ring. Then a foot away was this thing in the other pic, not sure what it is. Dug a couple modern coins and tons of junk I haven’t cleaned yet. Had fun on rainy day. My friend dug 3 nice square nails an some modern coins.