Tasco
Tasco Arithmometer
This unit is very sturdy and works well. It has a nice heft and the leather case stores a metal stylus. A sliding component of the face gets positioned down (as shown) for addition and up for subtraction.
Tasco Arithmometer
This unit is very sturdy and works well. It has a nice heft and the leather case stores a metal stylus. A sliding component of the face gets positioned down (as shown) for addition and up for subtraction.