Bob,

Thought you might find the below to be of interest.

I’ve seen exactly one saw-tensioning anvil in my travels. It was for sale at
Columbus Flea some years ago.  Price was too high at over $100.  Nice piece; it
was from Fisher & Norris in Trenton, so it was definitely an “NJ-made
collectible tool.”

I do have one of the special saw tensioning hammers.

Wonder if this guy would like to buy your sawmill blade?

JR
Sent from my iPhone