Black Frog

Pictures would certainly help, also picture of the serial number on the front foot.

Can you post a picture of the side logo stamp and another of the serial number ?

According to AIA, the year of production is 1900. thanks for the pics!

You have a Hay Budden anvil that was marked for a hardware brand.

Can you post pictures of the side logo stamp, and the serial number?

Trenton no doubt.

Hay Budden, no doubt

That anvil would be gone in a heartbeat at $325. prices have risen for anvils.

The section of the face that you say is rounded over is the radius ground in at the factory when new. Most later A&H's and Tretons have this, it is quite common for both makes. Here's another example from that vintage of A&H:

Even though your serial is rather unreadable, I can tell you that your logo stamp style is the last one used in U.S. Production. That stamp was used from 1939 to the end of CF&I's run in the 1950's.

Mid-to-upper 52xxx range from what I have documented.

With a serial number like that, it would not be A&H. Most likely Trenton. Take a closeup pic of the serial number. different companies used different character styles for their number stamps.

Scrub the front foot under the horn for a serial number.

No serial # on Soderfors, all cast steel, top notch anvil and one of the best. I don't know the dates for Soderfors making them for Belknap, but I'm guessing early 1900's. There may be a year date on the Soderfors somwhere, many times they stamped it

Incorrect, Belknap was made by several anvil makers, A&H being the main one. (several incorrect items in AIA...) Yours is a Soderfors, made in Sweden. You can see the casting line going up the center of the anvil below the horn and heel.