An early 20th Century Mahogany cased Barograph, Short & Mason, London, the lift off cover set with five glazed panels, to an ogee base and raised on four bracket feet, to a lacquered brass 8-bellow mechanism, with blued steel screws and flanked by a glass ink bottle and a further 8-day duration drum set with a paper label, signed to an applied ivory plaque, width 13 ¾”