SC: It looks like that anvil has been to war with a chunk of the top missing and maybe a huge weld on top of the horn. size doesn't really help with ID'ing an anvil, but weight might help a bit. also can you post up some pictures of the sides and can you see any stamps or casting names on either of the sides?
i didn't know there was such a car as a SLOW CAMARO, but i saved this sign a long time ago you might get a kick out of.
cheers