Got out for an hr or so with my Omega yesterday at a near by school, besides the usual pull tabs and wrapper foil I found .69c (1 quarter, 3 dimes, 1 nickel and 9 pennies) and 2 kids rings found together in the same hole one looks like a promise ring the boys bought for the girl in early teen yrs and the other has a butterfly on top and is stamped 12K on the inside of the band not sure how pure it is but its the first ring I've found that didnt say it was plated. Oh and the rings camp up as screw caps not sure what the the numbers were, disc set at foil sensitivity kept changing due to EMI but was never set above 52. HH Jimmie