The Substitution Balance by W C Bochkoltz, ca. 1833
The Bochkoltz balance of the Physics Department of the University of Lyon, France.
Most probably this balance was made by Delieul in Paris around 1833. It could be
viewed as a forerunner of the modern single-pan substitution balance as introduced
in the second half of the 20th century.
The top view of the balance at Lyon.
The drawing of the Bochkoltz balance as published in an 1833 paper by T. Olivier