Paper-covered oak cube with hand-colored copper engravings and brass gnomons on five of the faces, signed on the north face "D. BERINGER" (David Beringer, 1756–1821), the top, northern and southern faces with Roman chapter rings and garlands, the eastern face with plumb bob, Roman numerals and two figures, the western face with Roman chapter and figures, on fruitwood base with inset compass, turned column with compass joint for setting the pole height, edge length of the cube 2 ½ in., total height 7 in.品相: (2–3/2–3)