Allbrit sliding bar compensating polar planimeter with weighted arm

Made:
1969-1971 in Eltham
maker:
W F Stanley and Company Limited
Allbrit [sliding bar] compensating polar planimeter with

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Allbrit [sliding bar] compensating polar planimeter with
Science Museum Group
© The Board of Trustees of the Science Museum

Allbrit [sliding bar] compensating polar planimeter with weighted arm, spacer bar bar and hand magnifier with felt lined case by Stanley, London. Calibrated for Metric Measure, model A8035 and serial number 37405

Details

Category:
Mathematics
Object Number:
1997-2299
Materials:
brass, steel and complete
Measurements:
overall: 30 x 400 x 70 mm
type:
planimeter
credit:
DERA Haslar, Froude Museum