I dug this up about 3.5 to 4 inches deep between two baseball fields adjacent to a sidewalk. It ID'd as a quarter on my DFX using a 6x10 coil. The VDI number was 85-86 and the tone ID was loud and hi. It appears to be silver plated copper on the photos. When I first dug it I thought a small silver bar. It does have a small hole on one end and seems to be mounted on another piece of metal. Appreciate any help.