A RUSSIAN GOLD AND GUILLOCHE ENAMEL EGG PENDANT, WORKMASTER AUGUST FREDRIK HOLLMING, ST. PETERSBURG, 1899-1904 the chartreuse-colored body set with a band of diamonds, with a gold loop, marked with 56 standard, assayer's mark Ya L in Cyrillic for Yakov Nikolaevich Lyapunov, workmaster's mark A*H in Latin for August Frederik Hollming; length including loop: 2.5 cm; weight: 5.2 g (0.165 ozt)PROVENANCEPrivate American collection