Astronomical Device (3D)
Commentary
Date/Period: c. 1580
Material(s): gilt brass
Dimensions: length 100.6 mm (inc. pendant loop), width 68.2mm, thickness 27.4mm.
Movement: length 83.5 mm, width 52.4 mm, pillar height: 8.4 mm
Provenance: Munich, workshop of Hans Koch
Description: The astronomical compendium, shaped like a book, contains a clock with an alarm, two sundials, and two volvelles: one of which can be used to track the movement of the moon, and the other to calculate the hours of daylight and darkness at different locations. This meant it could not only be used to tell the time of day, but also to make calendrical observations.
Made in the workshop of Hans Koch, one of the leading makers of scientific instruments in South Germany during the 16th century, it is a fine example of how scientific instruments could serve as status symbols as well as practical tools. The intricate floral decoration is found on both the inner mechanism as well as the outer case, showing the maker intended the user to observe the inner workings of the device and to marvel at its beauty and complexity.