Facit C113 & ESA01 

Facit CI13 

Facit C113 Mechanical, pinwheel 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 AtvidabergFacit. Serial number 799426 made in 1961 according to the serial number list on James Redin's site (see below). 


Keyset pinwheel calculators 


The first Facit mechanical calculators had the standard layout of the Odhnertype pinwheel calculator, however 1n 1932 Facit
introduced the Facit T machine with key setting. 

Facit ESA01 

Facit ESAO1 Electromechanical, pinwheel calculator. Can multiply a 9 digit number by an 8 digit number and give a 13 digit answer. Functions  Addition/Subtraction/Multiplication/Division. 282 mm x 260 mm x 182 mm (11" x 10" x 7"), 13 Kg (28.5 lbs.). Made in Sweden by AtvidabergFacit. Serial number 356611 made in 1954 according to the serial number list on James Redin's site (see below). This is an electrically driven machine and is slightly earlier than the mechanical machine at the top of this page. 




James Redin has produced a table illustrating the development of Facit mechanical calculator models and their serial numbers at http://www.dotpoint.com/xnumber/cmisc_facit_page.htm Also, Christofer Nöring has an interesting history of Facit calculators at http://www.xnumber.com/xnumber/facit_history.htm 


Vintage Calculators 

© Text & photographs copyright Nigel Tout 20002015 except where noted otherwise. 