Museo Galileo
Virtual Museum
Adjustable slit
    • Setting:
      Room XV
    • Maker:
      Gaspero Mazzeranghi
    • Place:
    • Date:
      second half 18th cent.
    • Materials:
      wood, brass, iron
    • Dimensions:
      240x140x230 mm
    • Inventory:
    • Adjustable slit (Inv. 3199)

A brass plate with a square aperture is fixed to the center of a small shaped wooden board. Two iron blades, placed opposite the aperture, form a vertical slit. By means of a screw with a return spring, it is possible to slide one of the blades and thus adjust the width of the slit. The device was made by Gaspero Mazzeranghi.