Bentiron,
It's my first and only for now, which is why I'm not gonna mess with it too much. And don't get me wrong-- I LOVE the thing. It bounces a hammer back as good or better than the anvils at the smithy I'm learning at and it's bigger than I thought I could get for the money in this area. Beautiful lines and a 1" hardy. I got it and a NICE champion blower and a well-made shop-built forge for $350. Depending on how you value the other two, I've got about $1.50/lb or less in it.
But the photos aren't showing the defects very well. The face pitting is bad-- lots of them and up to 1/16" deep. I've worked on an anvil with pitting that bad and I'd much rather it be smooth. If I can get even a small area smooth and reasonably flat, it would be nice.
Sask Mark,
Yep, all steel, from face to bottom. And the casting lines can be seen clearly in the second photo.
Still no comments on the maker-- here's another Columbian with that same raised circle: http://www.youtube.com/watch?v=j-h7HYOYadA. Think it's a match?