There is a noticeable seam line along the face that spans from the horn to the back that appears to have been ground. Yeah, I figured it was an ASO. I got it for free out of my pops' backyard, so I reckon its not a complete loss...might give my buddy a call and get that railroad track instead. Thanks guys! I THOUGHT it was cast iron but I wasn't sure. Frosty, thanks for the tips. The USA is not recessed into the anvil; it is raised. There are no other real markings on it other than that and the sprue they didn't grind off. I wasn't sure if it was cast steel or iron though...I've read about the cheaper cast iron anvils and I thought that's what this could be. I'd say it weighs about 40-45lbs. My friend has a chunk of railroad track he was using but he swapped it out with a big piece of I beam with tool steel welded all over it, so I will more than likely end up with another free 'anvil'. I still haven't been able to do much with the one I have because of the weather and the holidays. Hopefully next week will be a little more forgiving.