Christie's Out of the Ordinary: The Online Edit will feature a set of photographs, illustrations and documentation relating to the discovery of Yeti footprints on the slopes of Everest.
The lot will auction with an estimate of ?�3,000 ($4,982) in the online only sale, which will run between August 27 and September 10.
Eric Earle Shipton took the photographs on his first ascent of Everest in 1951. They provoked a sensation on their publication.
Christie's main Out of the Ordinary sale takes place in London on September 3. Check out our list of the 10 weirdest items up for grabs.
Click here to view our fascinating memorabilia range.
Please sign up to our free newsletter to receive exciting news about art and antiques auctions.