Three items signed by notable explorers: a vintage glossy 10 x 8 photo of polar explorer Hubert Wilkins in front of a plane, signed in fountain pen; a vintage glossy 5 x 7 photo of travel writer and adventurer Richard Halliburton in Calcutta, signed and inscribed in fountain pen; and a commemorative cover honoring the Transglobe Expedition of 1979-1982, signed in ballpoint by Ranulph Fiennes and Charles Burton. In overall very good to fine condition, with heavy creasing to the Wilkins and Halliburton photographs.