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Agreed. Definitely an exhibition piece.

Take a pic of the whole blade and crop it down. Some more script may be visible.

Surely seems it may have been honed more knife-like?

Turn the pic so we can try to read it. Hurting my neck!
Wider pic?

Cool! Looks like the old celluloid. Does the blade look to have seen use? I thought maybe.

I would keep that thing open and ventilated.

Gotta be one of a kind!