An eighteen karat gold and ancient coin necklace, Bulgari, Rome. Photo courtesy Bonhams
composed of eight ancient Greek silver tetradrachma of Athena Attica, reverse with owl, dating from the 4th century B.C., joined by heavy curb link chain; signed Bulgari Roma, with signed box; gross weight approximately: 447.7 grams; length: 38in. Estimate $15,000-20,000 (€12,000 - 16,000)
Bonhams. 15 Apr 2013. New York. A Prominent Private Collection of Fine Jewelry