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Lot 8: A rare Troughton 'Mountain Barometer', circa 1815,
Clocks, Barometers, Scientific & Mechanical Items
February 23, 2013
Near Shaftesbury, United Kingdom
Description: A rare Troughton 'Mountain Barometer', circa 1815, the hollowed out folding tripod acting as a travel case for the instrument (see illustration). Footnote - this unusual instrument was used by mountain climbers or travellers to determine their altitude prior to the invention of the aneroid barometer in 1843.