Barograph recorder with eight capsules of Vidie in blond mahogany and with four glass faces signed Pryor Opticien Rue Auber in Paris opening by 4 hooks. Device with its winding key and a 7-day reserve. Drum with anchor movement. Serial number 305. Around 1900. W : 21, D : 12, 5 cm, H : 13 cm Provenance : Sale at Drouot on November 29, 2004