Brian said it well. It can take awhile to find a good anvil. As soon as you get one, they come out of the wood work. I would second what Brian said. IF you cannot find one, there is a company called Anvil Brand Shoe Company. They have what they call a AB Legend. It's a 120 lb anvil that is a good buy for a new anvil. Iihave used one, know several people who use them daily and don't have any complaints. If you find a good old anvil, it will likely be better for rebound, but having a new nice flat face with sharp edges is nice too. (the first thing is to take a flapper wheel to the edges and soften them. Leave a
sharp corner, but round to different diameters most of them ) I think that I heard that they are making a bigger one too.
There is a place called farriers depot in Ocala, fl that would have farrier anvils also, though anvil brand might bet them on price.
Best luck
Cody