Lot Essay
A comparable frame is preserved in the Moscow Kremlin State Armory Museum. See T. Muntian, Mir Faberzhe, Moscow, 1992, p. 151, no. 158, and C. Bolin and P. Bulatov, Bolin v Rossii. Pridvornyi Yuvelir konca XIX - nachala XX vekov, Moscow, 2001, p. 210, no. 199.