I just came into an anvil with the following markings:
TRADEMARK U.S. SOLID WROUGHT WARRANTY151
The "U.S." and the "151" are twice the height of the other stampings. It's a London pattern 26"L x 4"W x 11"H--face is 15"L. Base is 9"W x10"L .Waist is 5.5"L x 4.5"W.
Old cavalry anvil?
While it has a patina of rust, it's pretty light and refinishing the horn and face isn't proving to be too difficult. Edges are pretty uniformly broken down to an irregular .25" radius, but I think I'm just going to make them smooth and call it good.
Images are here:Thanks in advance,