Auctioneers at Christie’s are expecting a biscuit to earn up to $2,500 at auction. The 104-year-old biscuit is a survivor from explorer Ernest Shackleton’s Nimrod expedition to the South Pole in 1907. Made by Huntley & Palmers, the biscuit, which was found in the hut at Cape Royds, Shackleton’s base of operations during the expedition, was designed to provide energy and protein. If past experience is anything to go by, then the biscuit could achieve far more than a modest $2,500; a handful of crumbs from Shackleton’s more famous Endurance expedition sold for $11,000 back in 2001.

So as far as dry biscuits from a century ago are concerned, this one could be considered a snitch.