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Thanks everyone for the help. I do appreciate it. I'm still looking, but I did find the following which almost the same shape and size, with the same company logo. The only difference I can see is, of course, the serrations and the back seems a little more flared out, but that could have been from being hammered on http://www.ebay.com/itm/Iron-City-3-stone-mason-mash-blacksmith-hammer-head-vintage-1955-3-/200908156857?pt=LH_DefaultDomain_0&hash=item2ec70f2fb9I'm still leaning toward a stone working tool.Thanks again.