A barograph,
by Richard Freres Paris, No. 9175, the lacquered-brass mechanism contained in a glazed mahogany case with brass carrying handle -- 11¾in. (29.8cm.) wide, and a quantity of recording cards
A barograph,
by Richard Freres Paris, No. 9175, the lacquered-brass mechanism contained in a glazed mahogany case with brass carrying handle -- 11¾in. (29.8cm.) wide, and a quantity of recording cards
