I got this bfa circa 1972 and have never even come close to finding out it's origin, even Bill Gitchner was stumped. I got it from the UPRR. '' x 24'' long x 6'' wide face,15'' high, 39'' length. On one side just up from the bottom is an infinity symbol inside a circle. Above that is a ''Z''. Out of 15k+ members here this probably my last shot. It appears to be cast, note the symbols are convex. there are no sq holes in the body, It has sprues running parallel to the length below the heel and horn. It also has a 1'' tool steel face , different from the main mass......seems an odd duck! Oh and it rings like a bell , I put it on a piece of styrofoam once and tried it
note......putting an anvil on say, 1-2'' of styrafoam then striking it will give you a max ring.