This full-keyboard printing electric adding machine is a relatively late desktop machine made by Burroughs Corporation. It has a tan steel frame and nine columns of tan and brown square plastic keys.

Which adding machines for your office are best? While adding machines, sometimes referred to as printing calculators, may seem outdated and obsolete, they remain indispensable for offices all over the ...

This full-keyboard key-driven non-printing adding machine has a gray case. White and green plastic keys have complementary digits indicated on each key. Keys representing even digits are flat, and ...