This is a home-made anvil from a piece of railroad track. This can be used as an anvil, but I would pass on this, you'd be better off finding a more suitable anvil.
Yes, same hardware brand that early Trenton made anvils for. The backwards "B" is simply someone put the stamp in the holder upside down. Can't change it once it is whacked into the side of the anvil!
Those dimensions might put you in the mid-400# range.
I have a similar double hardy that is 38" x 5-7/8" and 15-1/4" tall. It is 465#.
Beautiful anvil, congrats!
SReynolds, if the serial number is gone, if you take a closeup picture of the side logo stamp I can give you at least a date range yours was made from the logo style.
It started life as a Trenton anvil.... If you get a closeup of the other side of the anvil it might have remnants of the logo stamp. Top still looks in fantastic shape and should be very usable.
That is an early U.S.-made Trenton with what looks to be a forged base. One of the latest serial numbers I've recorded before they fully switched over to the first style of cast base. 87 is the weight stamp. If you flip the anvil over and take a picture of the underside of the base, that would be great.
The lettering you see above the logo is the German spelling of "SOLID WROT".
According to AIA, your anvil dates to 1898.
It will most likely go higher...
I've talked with the seller. This is not fake bidding, it is the top U.S. brand, VERY rare size, VERY few made... For some big hitter collectors, this is the 'holy grail' of U.S. anvils.