Museo Galileo
Virtual Museum
    • Setting:
      Room IX
    • Maker:
    • Date:
    • Materials:
      cardboard, marbled paper, wood
    • Dimensions:
      length c. 3500-4000 mm
    • Inventory:
    • Telescope (Inv. 3377)
    • Telescope (Inv. 3377)

Telescope consisting of nine tubes. The largest is made of cardboard and covered with red and white ornamental paper (the white part has turned yellow). It contained the objective, now missing. All the other tubes are covered with red marbled paper. The last tube contains is the biconcave eyepiece, which has a diameter of 20 mm and a focal length of c. ‑50 mm (the negative focal length means that the lens is diverging). The glass has a very slight green tint and contains some spherical bubbles. The quality of the glass, the concave eyepiece, and the tube characteristics suggest that the instrument dates from the mid-seventeenth century; the paper with Italian and Latin words lining one of the tubes indicates an Italian provenance.