Our fine inventory is very important. 800 Silver Napkin Ring, Guilloche Style Decoration, A. All items and photos are the express property of Antiques & Uncommon Treasure. Antique french. 800 silver napkin ring, guilloche style decoration, a. d. mono we have rococo style napkin rings, guilloche style machined or engraved napkin rings, french empire style napkin rings, personalized napkin rings with the original owners' names on them.