Glassworks of Count George Francis August of Buquoy, South Bohemia (George's Valley / Jiříkovo Údolí or Stříbrné Hutě). Dated: Biedermeier (c. 1820-1840). Material: Opaque black hyalite glass blown into a mold with cut, hand-decorated with painting in pure gold with exotic Chinese scene (chinoiserie), inside of cup...