George Friedrich Brander (1713-1783), the most prominent German instrument maker of
his time, was born in Regensburg, worked in Augsburg, and took his son-in-law, Christian
Kaspar Höschel, into partnership in 1775. The horizontal circle of this theodolite is graduated to
degrees, and read by vernier (marked "Quena Minute") to 5 minutes. The vertical arc is
graduated to 30 minutes. The sighting bar has a pinhole sight at one end, and a glass disc with
cross hairs at the other.
Ref: Alto Brachner, et. al., G. F. Brander 1713-1783. Wissenschaftliche Instrumente aus
seiner Werkstatte (Munich: Deutsches Museum, 1983).