An Abraham's patent barometer, circa 1938
The silvered scale within glazed tube and calibrated 24-32in., signed Casella London 4585 and also inscribed C.M.O. 1798 (Commonwealth Metereological Office), the painted iron lower tube with alcohol thermometer, hanging from a wooden backboard -- 48in. (122cm.) high
An Abraham's patent barometer, circa 1938
The silvered scale within glazed tube and calibrated 24-32in., signed Casella London 4585 and also inscribed C.M.O. 1798 (Commonwealth Metereological Office), the painted iron lower tube with alcohol thermometer, hanging from a wooden backboard -- 48in. (122cm.) high
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