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The Aderes column-adding machine is a simple calculator for adding single digits. It is based on the Adix from 1903, but was itself ...

The Seidel & Naumann Adding Machine, or SuN Adder is a chain adder. It was made in Dresden, Germany, between 1910 and ...

The Olympia AE-8 is an adding machine from 1967. It is fairly unremarkable, with a standard keyboard and controls. For more ...

The Addimat adding machine, also called the Addipresto, was patented by Sergio Lanza in 1956 and made in Italy from then until ...

These simple adding machines were made by the Carlsen Brothers in Denmark - model A from 1946 to 1950, model B from 1951 ...

The Fraction Of an Inch Adding Machine, also called the Fractron, is a simple adder made from three aluminium discs - the front ...

The Victor 16-83-54 Adding Machine was made from 1960 till about 1967. It is very similar to the series 6, with a full keyboard, ...

The Star Adding Machine was made by the Todd Protectograph Company from 1922 till 1928 in various versions. Between 1918 ...

The Victor 2 adding machine was made from 1920 till about 1928, though only few were made after 1924, when the series 3 was ...

Two very similar adding listing machines by the Victor Adding Machine Company that differ only by their keyboard.

The Precisa 364 is an adding listing machine that can also do multiplication. It was made from 1963 to 1978. The Precisa 160 is ...

The American Adding Machine was made from about 1913 till 1922 by the American Can Company, and for a short while after ...

The Högfors Adding Machine is a simple adding machine made in Högfors, a tiny Swedish village near Norberg, 140km North ...

The Stima CM-III Adding Machine was made in Switzerland from 1930 till the late 1940s. If you use a stylus to enter a number on ...

The Precisa 102-1 adding machine was made in Switzerland in the early 1950s. It has some quirks that you need to be aware of ...

The Addometer was made by the Reliable Typewriter & Adding Machine Company from 1927 until the 1950s. It is an 8-digit dial ...

The Lightning Adding Machine is another simple dial adder. Apparently about 2 million were made between 1945 till 1959.

This Sterling Dial-A-Matic adding machine is a simple rotary adder with six dials and a clearing lever. It was first produced in the ...

The Lightning Adding Machine was made in Los Angeles from 1945 till about 1960. In 1950 the design changed, and here I ...

You might hear of ADHD (Attention Deficit Hyperactivity Disorder), but what about ADD (Attention Deficit Disorder)? Inattentive ...