Well, I am now in possession of two anvils and here is a little bit about them.

This is a Colombian Hardware Company anvil, made anywhere between 1905-1925 in OH or 1925-1927 from Sweden. It weighs in at around 128 lbs and is cast steel. The face is flat with little or no dings/dents

though the edges do have some chipping but easily worked around. I can't make out the symbol between the feet but it looks like a Y further up the anvil.

The second anvil I believe to be a Trenton due to the hour glass impression on the bottom and the serial numbers on the foot. They read Z 125 and 27270. Cast iron body with a steal top, she has seen quite a bit of use and has a good size chip out of the face but is still workable. It is around 116 lbs.

Here are some videos showing the sound and rebound of both anvils. It can take a second for them to load.