Allbrit [rule-form] linear planimeter with magnifier and hand magnifier in felt lined mahogany case by Stanley, London. Model A8220 calibrated for Imperial Measure, with, missing spacer bar and serial number, 35132.
overall (case): 50 x 400 x 90 mm
- furnishing and equipment
- measuring device - instrument
- Phillips Auctioneers
- Permanent collection
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