logo

Mechanical Calculators

Home
In various forms, these masterpieces of mechanical engineering survived in use up to about 1970. Many examples in excellent condition are to be found. The Muldivo on the top left is a particularly photogenic model of foreign manufacture (not dated). It has a shaped, fitted and varnished plywood case.
Click for larger image
muldivo
m2
odhner-thumb
facit-thumb
Muldivo
Muldivo Mentor
Original Odhner
Facit
britanic-thumb
contx-thumb
Addo_Thumb
Britannic
Contex
Addometer
Swift-Handy-Calc
 
Lagomarsino-Numeria
Swift Handy Calculator