Minelab Manticore, Minelab CTX3030 w 11" and 17" DD coils,
Minelab Excalibur II w 10" coil, Equinox 800 (4) w 11" and 15" coils,
Troy Shadow x2 w 7" coil, Pointers; Garrett Carrot, Pro Find 35,
925 silver hallmark can take on all kinds of odd distorted shapes including 700. But 750 is 18k gold.
I use to collect cameo pins and they'd run from 1880s - 1930s or so.
Face is crude and may be a portrait of the wearer's child.
I dug a ring like that at OOB, Maine but there was no cameo, just a silver case it wnt in, and the guys up here said it was late 1800's too, it was after a hurricane and a lot of sand was gone, great find, I love cameo's