This is an Oak cased barograph with asubsidiary barometer dial. Set in a five glass polished Oak case the standard lacquered brass movement and clock (the classic 1902 patent) are in excellent working condition, made circa 1935. Supplied with 6 months of standard charts, a fresh bottle of recording ink and a copy of a reprinted 1950s Negretti & Zambra pamphlet describing operating instructions and help with interpreting barograph chart recordings.
355mm widw x 202mm deep x 185mm high.