Small folding pocketknife with a single blade (blade broken/snapped near the tip), riveted metal scales showing heavy oxidation and pitting, attached by a curb-link chain to a rectangular silver-toned fob. The fob is engraved on both faces with a scrolling foliate border and a central cartouche bearing the monogram « M. »
Watch-chain knives of this type were a common personal accessory in the late 19th and early 20th centuries, typically carried attached to a pocket watch chain; the monogrammed fob suggests it was a personalized or gifted item.