We found this baby on a friends private property. There were mining activities there from the 1840's until the early 1900's. The object is iron and about 2 1/2 feet long end to end. It has six spokes from the center of the object, 4 of which have broken off. There are 3 known stamp mills on the property. We have found fire bricks and iron that was exposed to very high temperatures nearby. Could this possibly be from a stamp mill? Thanks for your help.