Jakob Goldschmid

Goldschmid Proportional Divider

Proportional Divider

Marking: J. Goldschmid in Zürich
Year: ca. 1870
Size: 25.5 x 3.5 x 2.5 cm
Goldschmid Polar Planimeter

Polar Planimeter

Marking: J. Goldschmid in Zürich
Year: ca. 1870
Size: 28.5 x 5 x 4 cm