The machine is built on the same principle as item inv. 998 and, like the latter, is known as an Archimedean screw, after the scientist who first designed such a device. A brass plate is hinged to a wooden base and its tilt can be adjusted by means of a sliding brass stirrup. The plate holds a glass tube closed at both ends by two brass stoppers and fitted with a handle. The stoppers carry small elastic strips holding a helical glass tube. Water is raised through the tube by rotating the handle. Provenance: Lorraine collections.