The auction is made up of more than 50 lots of rare Napa Valley library offerings, with vintages spanning six decades from 1978 to 2021.

Nearly 150 wineries joined forces on the lots, many of which feature bottles from multiple wineries. Bidding is now open and will culminate via a live auction on Saturday 5 February, at 4pm EST at Sotheby’s in New York.

The collection includes a four-bottle vertical of Harlan Estate magnums from the 2006–2009 vintages; a 10-bottle vertical set from Kenzo Estate; large-format bottles stored in the vaults of Robert Mondavi Winery, spanning five decades; and a one-of-a-kind magnum lot from Screaming Eagle's cellar comprising one magnum each of the three wines produced at the estate: Screaming Eagle Cabernet Sauvignon, Screaming Eagle The Flight and Screaming Eagle Sauvignon Blanc. Neither The Flight nor the Sauvignon Blanc are ever sold in large format, making this one of the rarest offerings ever assembled from the estate, according to Sotheby's.

 "The Napa Valley produces some of the finest wines in the world and our first ever auction together will focus only on wines that come direct from the winery’s library cellars," said Jamie Ritchie, worldwide head of Sotheby’s Wine.

Proceeds from the Napa Valley Library Wine Auction will go to programmes to promote, protect and enhance Napa Valley.

Full auction and bidding details are available here.