The Fort Lock Co. Chicago USA GEM Barrel Lock Key Set Of 2, Model #35851, is a rare and collectible item that is sought after by lock enthusiasts and collectors. Made in the United States, this set of tubular vending barrel lock keys is a unique addition to any collection. With a unit quantity of 2, this key set is practical and versatile, perfect for unlocking various types of tubular locks. The historical significance and craftsmanship of this product make it a valuable and sought-after find for those interested in locks and keys.