細節
BRITISH ANTARCTIC EXPEDITION, 1910-13
Charles Wright's Airy's Altitude Scale by T. Cooke & Sons Ltd, London, York & Cape Town, No. 762
round aluminium case and back, glass lens over dial face, knob and ring for lanyard on top, engraved on the back '-- PRESENTED BY -- THE MONMOUTHSHIRE BRANCH OF THE LEAGUE OF THE EMPIRE. -- TO THE -- BRITISH ANTARCTIC EXPEDITION OF 1910.'
the face 2in. (7cm.) diameter
together with a hand sewn cotton cushioned bag stencilled '12' and hand painted 'Polar', and typed operating instructions from the maker on company headed paper (old folds and damp stains)