Koh-I-Noor Hardmuth
Ceske Budejovice

Koh-i-Noor Hardtmuth - a manufacturer of pencils, pens and art supplies - was founded in 1790 by Joseph Hardtmuth of Austria and named after the famous Indian diamond Koh-I-Noor. The company was moved in 1848 to Budweis, a Bohemian town which belongs now to the Czech Republic. Koh-I-Noor Hardtmuth introduced in 1977 very interesting design variations of the TI-30, TI-1050 and TI-1265.

Source : Joerg Woerner, Datamath Calculator Museum

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