On 15 May 2015: African, Oceanic & Pre-Columbian Art: Sotheby’s. Among the jewelry for sale is this large gold frog pendant (800 – 1500 AD) from the Coclé civilization of modern-day Panama. Starting bids: $50,000 to $70,000. 23 April 2015: Art of the Islamic and Indian Worlds: Christie’s, London: An 18th Century Armenian gemset and…… Continue Reading