The $30.9m sale of antiquities in New York had stunning bids on several works and strong internet participation:

The sale was led by A Marble Group of Leda and the Swan, Roman Imperial, circa 2nd Century A.D which sold for $19,122,500 (est. $2/3 million). The sculpture was sought by four bidders before eventually selling to an anonymous purchaser bidding over the telephone. The competition included an online bidder who participated up to $16.5 million.Leda and the Swan was recently discovered in Aske Hall, North Yorkshire and had been in the collection of the Marques of Zetland since 1789.

An Egyptian Basalt Head of a King, Early Ptolemaic Period, Reign of Ptolemy I/III, circa 304-200 B.C. from the Collection of Dodie Rosekrans, the late San Francisco philanthropist and collector, sold to an online bidder for $392,500 (est. $100/150,000). This is the highest price paid by an online bidder in a live auction at Sotheby’s.

Other strong prices from the Rosekrans collection included A Marble Head Of Zeus Ammon, Roman Imperial, Circa A.D. 120-160, which sold for $3,554,500 and was purchased by The Metropolitan Museum of Art in New York (est. $800,000/1.2 million), and An Egyptian Black Basalt Head Of Tuthmosis III, 18th Dynasty, Reign Of Tuthmosis III, 1479-1426 B.C, which sold to an online bidder for $602,500 (est. $150/250,000).