Theater of Machines, Volume II

A large engraving depicts a complex mechanical apparatus, likely a surveying or leveling instrument, featuring a central pillar with a crossbeam supported by trusses. The device includes various plumb bobs, sighting mechanisms marked with the Greek letter theta, and a graduated vertical scale on the right. Several smaller components, including a cylindrical roller, a tripod-mounted stand, and a decorative vessel, are arranged on the ground level.