Addiators A Collection of Mechanical Calculators

Addiators, or troncets, are simple adding or adding/subtracting devices which operate via a system of slides usually operated with a stylus. They are also commonly known as slide adders. Addiators are strictly speaking just one of many brands of slide adder, but the term "Addiator" has been adopted as the generic term for all such…

Vintage Addiator Duplex, mid century mechanical calculator from Germany

Powerhouse Collection - Addmaster calculator

Addiators A Collection of Mechanical Calculators

Category:Mechanical calculators - Wikimedia Commons

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Mechanical calculator - Wikipedia

Shady Characters advent calendar 2023: the addiator – Shady Characters

Addiator Arithma Mechanical Calculator

Addiator Rechenmaschinenfabrik, C. Kubler, Berlin, Germany - Addidator-Duplex - Mechanical calculating machine, 1950s - sheet - Catawiki

A “Saldorita” calculator and an “Addiator” calculator, 20th century. Miscellaneous - Technica & Nautica - Auctionet