Crazy

thanks for all the replies I’ve tried to get the serial numbers where I can read them no luck one pic below is after wire brush and other is with effects on phone trying to get it to show better any ideas how to get them to show up thanks again 

I do remodeling work an got this off a job I done don’t know anything about blacksmith work just seen on eBay what some of anvils priced for it’s been setting at back door inside house wife not to happy 

How much are they worth and should I clean it up or leave it alone 

Trying to identify the maker of this anvil