Astronomical Set of Instruments with Angle-Meter, Equatorial Sundial and Nocturnal
Grüsch, 17th century
This multi-piece, hinged universal pocket instrument of brass bronze was a versatile travelling companion: It included among other things a full circle for topographic measurements, a compass with wind rose, a sundial and a nocturnal, names of the months, zodiac signs as well as data on latitudes of European cities. With it one could measure angles, observe the sky and determine local time by day as well as by night.
Despite its versatility it was mainly a prestigious object for wealthy travellers, since it was too inaccurate for scientific purposes. This example comes from the family von Salis in Grüsch.