As I stated earlier, my anvil was cut from 4" plate and is one of a kind. In the attached picture of stacked anvils, mine (before shaping of the horn and shelf) is at the bottom. The next from bottom was cut for 3" plate followed by a few others that I made just for novelty's sake
The other picture shows the smallest I made. The key ring is intened to show scale. That anvil is 1.25" tall at the face and .75" wide. its 2.75" long from horn to heel with the horn being about .88". It weighs less than 2 pounds.