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.

This full keyboard printing adding machine is manually operated. It has a metal frame painted black, with a metal keyboard painted green. There are five columns of black and white color-coded plastic ...

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 While adding machines, sometimes referred to as printing calculators, may seem outdated and obsolete, they remain indispensable for offices all over the ...