Circular, the lid set with a medal depicting Empress Catherine II Alexeievna "The Great" signed Wæchter after a portrait by I.B. Gass, with surrounding inscription in Cyrillic "B.M. Ekaterina II Imperat[ritsa] I samoderzh[itsa] Vseross[isskoi]" and depicting the Empress in profile as an allegory of her accession to the throne on 28 June 1762, the box allover nielloed in geometric patterns and silver gilt, the underside with niello military trophies, struck to interior of base with Moscow marks for 1777-1779.