Lot Essay
Taken on 30 September 1951 at about 20,000ft (6,100m) on Pumori as part of a reconnaissance of the Western Cwm with Ed Hillary, Shipton's revelatory photograph shows the view up the Western Cwm which 'appeared like a vision' and unlocked the southern line of approach to the summit of Everest. (E. Shipton, The Mount Everest Reconnaissance Expedition 1951, London, 1952, p.41)