Exceptional aneroid barometer by Callaghan & Co. Rare form with knob at bottom to adjust the set hand. Very fine quality. Curved mercury thermometer at bottom of dial. Address reads "23a New Bond St, corner of Conduit St, London."
Measures 5" diameter by 2.75" depth. Fine working condition.
Product Reviews for Callaghan & Co. Aneroid Barometer
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