Objekt 11
Bar compass with two bars for different radii
Description
Pole compasses allow drawing circles with large radii. The tip and the writing tool are movable and can be moved on the wooden rod. A micrometer screw is used for fine adjustment.
Object description
England, around 1800
Wood, brass, iron
Gift 1829 from Prof. Daniel Huber
Deposit Institute of Physics of the University of Basel, Phys. 102.
Inv. 1986.409.1. and 2.