Outstanding old sterling silver napkin or hanky clip in the form of a lock. Engraved rivets and a keyhole to simulate a real lock, this sterling clip will keep your napkin or hanky safe and secure. Produced by R. Blackington Company of North Attleboro, Massachusetts. Blackington silver is a sought after name in collectible sterling, producing sterling silver novelties from 1862. This silver clip measures 1 3/4" in length and measures 1 1/8" at the top of the lock. Excellent condition with no dents or dings, a cherished and hard to find addition to your collection of napkin clips by one of the most distinguished makers, known for their quality silver.