Looks like something I should know, but I am drawing a blank. It was given to me
as a three corner scraper without handle, but it is not.

Cross section is roughly a 60deg segment from a cylinder, with fine grooving on
the most of the cylindrical surface like a knife steel, and the end cut at an
angle. No edge sharp, and the metal is not as hard as a file, but is not soft
(don't want to hit it with a hardness tester)
Ideas?
photos: https://www.flickr.com/photos/132023211@N.../with/16646414084/"
>https://www.flickr.com/photos/132023211@N.../with/16646414084/