You are viewing a Russian niello silver Czarist era signet ring made in the 1880's. The ring measures 16 mm or 5/8" long by 20 mm or just under 3/4" across. On top is the Russian Imperial double headed eagle. The sides have a fancy acanthus leaf design. There are two Russian hallmarks on the outside of the shank, see photo. The ring is a size 10. The ring weighs 6.4 grams. The niello finish shows wear; and, it is being sold "as Is".