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ID number:  BIRRC-P0592
Institution:  Research and Cultural Collections
Named collection:  Historic Physics Collection
Artist / Maker:  Bailey
Title / Object name:  Mercury Barometer
Object type:  Barometer
Place made:  Europe: United Kingdom, West Midlands, Birmingham
Materials:  Mercury in glass in metal case. Outer case of black painted wood with glass panels
Measurements:  7 cm diameter x 109 cm long, in case 20 x 16 x 127 cm

This is a standard form of mercury barometer used for precise measurements of atmospheric pressure. At the lower end there is a reservoir that can be raised by a screw to set the mercury level against a pointer. A marker is then set level with the top of the mercury meniscus in the column and the exact height can be read with a vernier scale. This scale is calibrated from 69 to 84 cm and 28 to 33 inches.
A thermometer calibrated in both Celsius and Fahrenheit is fixed to the front of the column.

Inscriptions / Translations:  BAILEY, 14 BENNETT’S HILL, BIRMINGHAM

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