Museo Galileo
Virtual Museum
Terrestrial telescope
    • Setting:
      Room XVIII
    • Maker:
    • Place:
    • Date:
      first half 18th cent.
    • Materials:
      cardboard, paper
    • Dimensions:
      length 1050 mm
    • Inventory:
    • Terrestrial telescope (Inv. 3549)

Terrestrial telescope consisting of five cardboard tubes. The largest is covered with brown (previously white) and gray marbled paper. The other tubes are covered with blue paper carrying white geometrical patterns. One of the tubes is lined with paper with Italian writing. The biconvex objective lens is contained in the largest tube and has a diameter of 33 mm. The compound eyepiece consists of three biconvex lenses. It is housed in a little tube, covered with white paper with floral decorations, that can be inserted into the smaller tube of the telescope. The instrument's magnification is 15.