Dimension:142.3gram. 4"x 3 1/4". The entire metallic surface is decorated with a fine, vertical engine-turned pattern (guilloché).Located in the upper-left quadrant is a small rectangular frame enclosing the hand-engraved serif initials "LR". The entire interior of the case is heavily washed or plated in a rich, warm yellow gold finish (often referred to as a gilt interior or vermeil). This was a practical luxury design choice; gold plating prevented the sterling silver from tarnishing when exposed to moisture or tobacco chemicals.MADE IN U.S.A. PATS.FEB.1.16 AUG.14.17 APR.22.19" indicates the case was manufactured in the United States and protected under a series of utility patents filed between February 1, 1916, and April 22, 1919. This sequence places the design engineering firmly at the transition between the late Edwardian era and the dawn of early Art Deco."KEEVERKASE" This is the registered commercial trademark name for this specific style of pocket organizer case. It identifies the piece as a vintage KeeverKase mechanical cigarette or card holder, a brand highly sought after by collectors of antique Tobacciana and early 20th-century vanity cases. [1] (https://www.ebay.com/itm/144840459356)"STERLING CAN. PAT. MAY 2.1614K GOLD INLAID" Guarantees that the main outer silver-toned shell of the case is solid 92.5% pure sterling silver.