Museo Galileo
Virtual Museum
Surveying instrument
    • Setting:
      Room VI
    • Maker:
      Christoph Trechsler
    • Place:
    • Date:
    • Materials:
      gilt brass
    • Dimensions:
      side of square 63 mm, length of longest side of triangle 120 mm
    • Inventory:
    • Surveying instrument (Inv. 643)

Set of two small instruments of similar design: the first is a heavy square with a magnetic compass (missing its magnetic needle) with mobile indexes and two graduated circles; the second is a triangle, bearing on its side the initials of its maker, "C. T." (Christoph Trechsler), and a small arc with decreasing graduations that represent a linear scale. Brought to Florence from Germany by Prince Mattias de' Medici in the first half of the seventeenth century.