Vintage Gold-Plated Folding Pocket Knife Pendant on Chain

This item is a vintage folding pocket knife, likely dating from the 1920s to the 1940s, designed to function as a piece of gentleman's jewelry or a watch chain fob. The handle scales feature an ornate engine-turned or guilloche engraving pattern with a decorative border and a central longitudinal panel, characteristic of the Art Deco period. The knife body appears to be constructed of gold-plated or gold-filled brass, exhibiting a soft yellow sheen with visible surface patina. It measures approximately 2 to 2.5 inches in length when closed. The single carbon steel blade is centrally pivoted and shows significant darkening and oxidation (patina), consistent with its age and material. The item is attached to a fine curb link chain that terminates in a mechanical swivel lobster-style clasp, typically used for securing such accessories to a vest or pocket. Condition is fair to good, with signs of consistent use; there is visible wear to the gold plating on high-contact points, and the blade surface shows pitting. No manufacturer stamps are clearly visible in the provided image, but the craftsmanship suggests a mass-produced yet high-quality accessory from an established jeweler or cutlery firm of the mid-20th century.