I have found not one not two but three nickles at the depth of 8 to 10 inches in a very used school yard from 1930s to present.. could not believe the first time. thought i might had knocked it deeper the second time, but the 3rd time i had a 8" in dia.hole 10"deep when it came out in a clump of dirt. this soil had 20% mix of sand around a ball field.
THIS IS WITH A 5"COIL 1938,1953, 1953..
THIS IS WITH A 5"COIL 1938,1953, 1953..