Went and look at the anvil after work today. The person selling it said it had been sitting in a barn for a very very long time, hence its condition. Even had pigeon crap on it. It was indeed a PW anvil, but the owner misread the weight stamping on the side.
He had told me earlier 1-0-20 as a stamping, but in actuality it was 1-1-20 or 160 pounds . Had a nice ring on the side when tapped with my hammer. Without clearing any rust or dirt off, I tried my 1 inch hardened sphere bounce test.
Even through the crap on top I still got about 60% to 70% bounce in most places. I plunked down $250 cash as my only offer, and I'm the proud new owner of a very dirty, 160# Peter Wright anvil. My first anvil. :)