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Monpti, 1969

Monpti, 1969

Monpti, 1969, Czechoslovakia A portable typewriter designed by Prof. Stefan Lengyel for many years as a design consultant for Miele and Rosenthal. Curios: Monpti is very similar to Olivetti’s Valentine.

22 July 20203 August 2024
Mignon, 1923, N°4

Mignon, 1923, N°4

Mignon, 1923, N°4, Germany Invented by: Dott.Friedrich Von Herfner and made by A.E.G. di Berlino. Curios: This Model used the so-called “index” writing style. The letters were selected by moving the “index” device to the selected character. When the key is pressed the “character support” cylinder lowers and prints the letter on the page. Only disadvantage: slow...

21 July 20208 January 2022
Brunsviga, 1957, 13 RK

Brunsviga, 1957, 13 RK

Brunsviga 13 RK, 1957, Germany This calculator is based on the principle of the “wheel with moving teeth”, invented by the Swedish WT Odhner in 1873; it has been the most used mechanism in mechanical calculation tools by many companies around the world. The small size made it a very suitable tool to be placed on...

21 July 20209 August 2022
Museo Nicolis Verona, 1948 Monroe LA5-160, ph. Museo Nicolis

Monroe, 1948, LA5-160

Monroe, 1948, LA5-160, USA The Monroe Calculating Machine Company was founded by Jay R. Monroe in 1912 in order to make calculators based on the latest design by Frank Baldwin. Baldwin had invented many different calculation machines, but was unable to market them successfully for many years. The first Monroe calculator was the model A in 1911/1912. Larger scale production started...

21 July 202023 December 2021