Cup used during 1952 expedition to Mount Cho Oyu

Barometer used during 1953 Mount Everest expedition

Microbalance used during 1953 Mount everest expedition

Food weighing pan, used in 1952 expedition to Mount Cho Oyu

Gas meter used on 1953 Mount Everest expedition

Thermometer, for measuring solar radiation and temperature, used on 1953 Mount Everest expedition

Respirator used on 1953 Mount Everest expedition

Respirometer used on 1953 Mount Everest expedition

Haemoglobinometer used on 1953 Mount Everest Expedition

Respirator used on 1953 Mount Everest expedition

Pressure gauge used on 1953 Mount Everest expedition

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