A rare collection of 63-year-old photos depicting the supposed footprints of the mysterious Yeti, an ape-like cryptid believed to inhabit the Himalayas, could fetch up to USD 8,300 at an online auction.
The photographs were taken by British mountaineer Eric Earle Shipton when he was leading an expedition on Mount Everest in 1951.
He believed that the footprints might belong to a bipedal creature known as the Yeti.
The photos sparked debate about the existence of Yeti, according to Christie's, the auction house handling the online sale.
Four of Shipton's 12-inch by 13-inch photographs will be sold to the highest bidder in a two-week-long online auction that began on August 27.
Two of the photos feature the alleged Yeti footprints alongside human footprints for the sake of comparison, 'Live Science' reported.
The other two photos give the viewer a better sense of the scale of these enigmatic prints - showing the Yeti footprint next to an ice axe and a booted foot, respectively.
The photos could fetch up to USD 8,300, according to Christie's.
Other highlights from the "Out of the Ordinary: The Online Edit" auction include a fragment of the Bible that accompanied American astronaut Edgar D Mitchell to the Moon during the Apollo 14 mission in February 1971.
The specimen could sell for USD 16,500, according to the auction house.
An egg from an extinct species of elephant bird (Aepyornis maximus) from Madagascar has a starting bid set at USD 10,000.