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A combination instrument recording barometric pressure, temperature and humidity. Unlike other instruments recording these elements, this one has an extended clock drum allowing separate recordings. This particular example would have originally been supplied with a metal case and at some stage was installed into this most attractive mahogany case, complete with beveled edged glass and a 40mm deep chart drawer to the base. The correct charts will be supplied with this impressive instrument.405mmH x 467mmW x 285mmD

BAROGRAPH, THERMOGRAPH, HYGROGRAPH by JULIAN P. FRIEZ, BALTIMORE

£2,850.00Price