a series of Keystone View Company polar expedition glass lantern slides c.1930, 14 recording the Richard E Byrd first Antarctic expedition 1928-1930, including the ships the City of New York and the Eleanor Bolling, dog teams, Little America base camp, the Magnetic House, Ford plane hanger built from snow blocks, tracked snowmobile, etc., with a slide of the Belgica Antarctic Expedition 1897-1899, Roald Amunsen in the snow, c.1911, the Windwood and Eric-Perry expedition Greenland 1901, 17 Keystone slides, all 8.2cm x 10.1cm, all in good condition