Matzka Circular Calculator - Precision Instrument - Austrian Patent - Circa 1940
A remarkable pocket calculator by engineer Karl Matzka (unlike the more common and mass-produced Soviet KL-1 versions, this original model is distinguished by its rarity and fine engraving). A double-sided instrument in chromed brass, it allows for the calculation of multiplications, divisions, sines, cosines, and tangents. A complete scientific object, ideal for the discerning collector or a cabinet of curiosities. The instrument is functional: the two knurled crowns smoothly actuate the movable indexes on each side, allowing for synchronous and precise reading of the scales.
95 €
Period: 20th century
Style: Other Style
Condition: Good condition
Diameter: 5
Reference (ID): 1728026
Availability: In stock
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