Vintage ATVIDABERG-FACIT CI-13 mechanical calculator in working condition with original manual.

Mechanical, pin-wheel mechanism, with key setting.

Can multiply a 10 digit number by an 8 digit number and give a 13 digit answer.

Functions - Addition/Subtraction and Multiplication/Division/Square roots using special techniques.

310 mm x 215 mm x 150 mm (12" x 8.5" x 6"), 6.75 Kg (15 lbs.).

Made in Sweden.