By way of Instagram and a showing in Hong Kong, Sotheby's unveiled yet another blockbuster consignment for the upcoming fall contemporary season, Andy Warhol's massive Mao, an 82-by-57-inch silkscreen executed in 1972.

The work, which is expected to realize $40 million at Sotheby's evening contemporary sale on November 11, is the earliest iteration of the cycle that marked Warhol's return to painting after a seven-year hiatus following his "Flowers" series.