Hypsometric aneroid J H Steward London
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Antique Surveyor’s Hypsometric Aneroid
Great quality surveyor's barometer & altimer dial signed Hypsometric Aneroid, J H Steward Ltd, 406 Strand, London together with a clinometer branded with the same name, both in original cases. Clinometer size 12cms x 7cms, barometer & altimeter size 10cms x 10cms
Item: TH118