Fisher Anvil

I expect it is a perfectly good Fisher.  Some people swear by them, some curse them.  I have never knowingly used a Fisher.  I noticed there is still a portion of the Hardie Hole in place - one might be able to weld a square section to that channel to recover the use of Hardie Hole tools.  The welding could be done far enough below the plate, or with the anvil inverted in a cooling water bath to preserve the temper, so that you retain all that is present now, plus a square hole for tooling.  I would consider that if it were my anvil.

Actually, repairing a Fisher is a major job because a Fisher has a cast iron body with a tool steel top plate on the body, and horn.  This is one where you get it, and use it as is.