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Mounted on wooden stand polished with heavy metal base, having levelling screws. Mounted on wooden stand polished with heavy metal base, having levelling screws. Overall height 120 cm Box wood scale 100 cm graduated in mm reading in both directions. The mercury reservoir held in clamp slides on metal rod. A Jolly's air bulb made from corning glass is supplied mounted on a wooden frame which can be slotted on the side. Complete with rubber tubing and set of two glass tubes, without mercury.