An Abraham's patent barometer, circa 1938

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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

Special notice

VAT rate of 17.5% is payable on hammer price plus buyer’s premium. This lot is subject to Collection and Storage Charges.

Lot Essay

This barometer was patented by R.M. Abraham in 1937 and put on the market by Casella, the firm of which he was managing director. For a diagrammatic explanation of its functions see W.E. Knowles Middleton The History of The Barometer, Baros Books, 1964, p.212.

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