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…

File:Modern Addiator.jpg - Wikipedia

Addiator' calculating machine, c 1924.

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Pocket Mechanical Calculator - Addiator/Addifix

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

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Powerhouse Collection - Addmaster calculator

Addiator Duplex Pocket Calculator Gold Plated Aluminum

Slide calculator - Wikipedia

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Mechanical calculator (1920)”Addiator” calculator with stylus, carryin

John Wolff's Web Museum - Slide Adding Machines

RESERVED for Sakornrat. Vintage Piccolo-S mechanical Addiator

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File:Vintage Calfax Data Brain II Electronic Pocket Calculator, Similar To The Unifive Data Brain II (aka Unifive 301) Made In The USA, Red LED Display, Made In Hong Kong, Circa 1974 (14212785093).jpg

vintage kingson magic brain pocket calculator with stylus Hong Kong