Allbrit sliding bar compensating polar planimeter with weighted arm

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 in wooden case by Stanley, London. Model A8035 calibrated for Metric Measure, with magnifier and serial number, 43891.

Details

Category:
Mathematics
Object Number:
2000-177
Materials:
brass, plastic, glass, paper and complete
Measurements:
overall (case): 55 x 460 x 95 mm
type:
planimeter
credit:
Phillips Auctioneers