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…

Antique German Slide Mechanical Calculator ADDIATOR subtraction case

RESERVED for Sakornrat. Vintage Piccolo-S mechanical Addiator. Pocket Manual Calculator. Collector Adding Machine. Gift for Geek

Shady Characters – Page 2 – The secret life of punctuation

Addiators A Collection of Mechanical Calculators

Addiator Duplex Pocket Calculator Gold Plated Aluminum

Addiator Lot of (4) calculating machines from the 20's, …

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

Addiator Slide Adder (Troncet) A Collection of Mechanical Calculators

Meeting of six calculators - Addiator desktop calculator…

Angle/Time Calculators

Inside a mechanical calculator

ANTIQUE GERMAN MECHANICAL CALCULATOR SLIDE ADDER ADDIATOR/SUBTRACTOR PRODUX