from a small park sev weeks ago using the Eurotek Pro with 8 inch coil.Finally managed a halfway decent photo and downloaded a free editor.So, they tore up a small park, some turf, basket ball court.I managed to be the first in and right away found the ring on the left with the two big diamonds. Wasnt sure if it was sterling till I cleaned it later. Its stamped U Sterling, with an arrow thru the U. The Uncas jewelrycompany was in buisness from about 1911 to late 1980"s.Other two rings look old but junky. The one with the brown stone is set in gold but not sure if its real gold and no band. The little bullet looking thing is neat not sure what it is.4 and 1/2 wheaties, and two St Christopher medallions made for a great day of detecting(6 hrs). First trip was 4 & 1/2 hrs then later in with the Gold Bug and 5 inch coil, managed to find one wheat and that half one in the pic. Not everyday I stumble on a demo site. Its gone now but I had one good day at it.