Vintage. Pre-owned. In need of a good cleaning. Has surface rust all over. Functional. The expansion adjustment bolt works. Apparently that is rare. Marked 10 in. Also has what I think is the number 57 on inside of blades. Blades look good ,obviously needs sharpened. I don't know what year manufactured. Possibly 1940s from research. Please look closely at the pictures for details, condition, and measurements.