Altitude quadrant

Made:: 1552

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European horary quadrant, 1552. Brass horary Gunter quadrant, dated 1552 ( 9-inches radius) shadow square and degree
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Altitude quadrant, maker unknown, made in Europe, 1552.

Altitude quadrants are mathematical instruments that were used for simple surveying tasks. This quadrant has eual and unequal hour scales on the front. On the reverse there is a scale for measuring altitude in degrees and a shadow square.

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Details

Category:: Astronomy

Object Number:: 1952-228

type:: altitude quadrant

taxonomy:

furnishing and equipment
measuring device - instrument
timepiece
horary quadrant

credit:: Backer, H.E.

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