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Couple cans of freon may also work,used to freeze locking lugnuts with the stuff when people lost the key,freeze um,smack um with a hammer,they crack right off

Curious,were vintage anvils hardend at all?

It was horrible,he was 34 yrs old.Since that happenend I am very carefull with my chisles and even small punches.

Your wise to be concerned about the chipping edges,Beware.
One of my best friends was killed when a wedge he was using to split logs (mushroomed edges) came apart and severed his subclavian artery.

Have had two re-ground,anvils are not precision instruments.

Thats a great find.Find a machine shop with a surface grinder,in short order that puppy would be prestine.