Eighteen inch standard rule at 62 degree F

Made:
1830-1870 in London
maker:
Scientifica-Cook Limited
Eighteen inch standard at 62 degree F by Troughton & Simms

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Eighteen inch standard at 62 degree F by Troughton & Simms
Science Museum Group
© The Board of Trustees of the Science Museum

Eighteen inch standard at 62 degree F by Troughton & Simms, mid 19th century

Details

Category:
Meteorology
Object Number:
1995-1823
Materials:
complete, brass (copper, zinc alloy) and paper (fibre product)
Measurements:
overall: 50.9 x 4.3 cm
type:
ruler - measuring device
credit:
Meteorological Office