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'Midg' Camera Used to Make the First Two `Cottingley fairies' Photographs in 1917
Quarter-plate `Cameo' camera used to take 'second phase' of Cottingley Fairies photographs, 1918-1920
Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.
1642-1649 (original); 1883 (model)
Alexander Performance Scale Test kit, Edinburgh, Scotland, 1946-1950
Psychology, Psychiatry & Anthropometry