Chateau Frères Calculating MachineThis Chateau Frères mechanical calculating machine was made in France, circa 1920, and is an artifact in IBM's collection of calculators and other business machines.
Chateau Frères
Calculating Machine
Calculating Machine
Chateau Frères Calculating MachineThis Chateau Frères mechanical calculating machine was made in France, circa 1920, and is an artifact in IBM's collection of calculators and other business machines.