Facit AB C1-13 Calculator

Facit C1-13

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 by Atvidaberg-Facit.

Serial number 799426 made in 1961 according to the serial number list on James Redin's site (see below).
A later, more angular. model was on sale till the early 1970s.