Welsh's slide rule, for Magnetic observation

Welsh's slide rule, for Magnetic observation

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Welsh's slide rule, for Magnetic observation
Science Museum Group
© The Board of Trustees of the Science Museum

Welsh's slide rule, for Magnetic observation

Details

Category:
Meteorology
Object Number:
1995-1891
Materials:
wood and paper
Measurements:
rule: 40 x 5 cm
type:
slide rule
credit:
Meteorological Office