Sierra Club, San Francisco, 1965, First American Edition. Large format gilt embossed grey cloth boards, chipped Dustjacket, overall Fine, with loose-leaf Folio of additional glossy colour lithograph Plates, Signed by author Tom Hornbein, who made first West Ridge ascent of Everest (with Willi Unsoeld) and first Himalayan traverse, plus Signed by Jim Whittaker, First American ascent of Everest, a few days earlier on South Col route. Folio-sized true First Edition, 200 pages with maps & illustrations, 84 marvellous full-page glossy Plates. (Neate: H112) Exciting story of American mountaineering classic, well-written and wonderfully illustrated. Two climbers defied rigid rules broke off on lonely first attempt up the West Ridge, way out on a limb. Benighted after crossing the summit, they survived a high bivouac to descend the Lhotse Face & Western Cwm, a triumph of will and determination. Signed by summiteers Hornbein & Whittaker. Near Fine.