This is an ART DECO STERLING CIGARETTE CASE. Please note this is designed with Good THICKNESS and CURVED. Size is 3 1/4" X 4 1/8" Closed; extends to approximately 7" Opened. Thickness is 11/16" or a 15.5mm approx. From a Fabulous Maryland Judge's Estate this CASE is monogammed: HNH on the front. The Mark on the interior reads: STERLING/ Trident extending out of a B logo/ 31. Gilded interior. Overall condition is EXCELLENT with only a few noticable points of wear but these are of the "search to find" variety. One Dealer told me "should be worth a couple hunrded"; try around half that at Auction to start.