You are offerding on a Golden Gem Chain adding machine.
Typically carries patent dates from 1904 to 1907.
Can perform addition only, this model has 7 chains and can add up to 9,999,999.
The stylus is inserted in the chain at the digit required to be added and the chain is moved downwards to the edge of the frame. The knob at bottom right is rotated to clear the register back to zero.
123 x 79 x 26 mm (4.8\" x 3.1\" x 1.0\").
Made by the Automatic Adding Machine Co., New York, U.S.A.
Original stylus is missing, but the included small ball-point pen works fine as a stylus.
Free shipping!
Happy offerding!