GIOVANNI PICHLER (1734-1791) CAMEE WITH PORTRAIT OF ALEXANDER THE GREAT on a two-layered agate set in a patinated gold ring. The portrait of the conqueror is in profile to the right. Cameo 15 x 22 mm; tdd 53; Pb 10,42 g; Rome, circa 1770/80 Signed below the neck line "Π". By Giovanni Pichler (1734-1791). An agate cameo with the portrait of Alexander the Great and mounted in a gold ring. Signed "Π" under the neck line. Rome, circa 1770-80