Telescopic diopter
c. 1850-1860
Museo Galileo, inv. 3897
Instrument made by the mechanic Giuseppe Poggiali. Equipped with telescope and bubble level, it was used with a Pretorian table to trace the direction between two points.
Telescopic diopter
c. 1850-1860
Museo Galileo, inv. 3897
Instrument made by the mechanic Giuseppe Poggiali. Equipped with telescope and bubble level, it was used with a Pretorian table to trace the direction between two points.