Manufactured by the Gab-Ka Zephyr Company of Paris circa 1910, this adding machine is part of the IBM Collection of historical calculating devices begun by Thomas J. Watson, Sr., in the 1930s.
Manufactured by the Gab-Ka Zephyr Company of Paris circa 1910, this adding machine is part of the IBM Collection of historical calculating devices begun by Thomas J. Watson, Sr., in the 1930s.