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There are minor scuffs and losses on the outer metal case.In addition to the serial number the bottom of the calculator is stamped Made in Liechtenstein, by Contina AG Mauren, System Curt Herzstark.Prices seen span a long time and may not reflect current values. On other pieces you will see no price, or a price range, with or without an explanation.The reasons for that are discussed on the FAQ page. That would date this from the first year or two of production.The Curta's design is a descendant of Gottfried Leibniz's Stepped Reckoner and Charles Thomas' Arithmometer, accumulating values on cogs, which are added or complemented by a stepped drum mechanism.It has an extremely compact design: a small cylinder that fits in the palm of the hand.Herzstark, the son of a Catholic mother and Jewish father, was taken into custody in 1943, eventually finding himself at the Buchenwald concentration camp. If it is really worth something, then we will give it to the Führer as a present after we win the war.Most prices seen reflect actual sale results from this website.

The relatively cold oceans have absorbed copious quantity of atmospheric CO.

Curtas were considered the best portable calculators available until they were displaced by electronic calculators in the 1970s.

The Curta was conceived by Curt Herzstark in the 1930s in Vienna, Austria.

My tongue, every atom of my blood, form'd from this soil, this air, Born here of parents born here from parents the same, and their parents the same, I, now thirty-seven years old in perfect health begin, Hoping to cease not till death.

Creeds and schools in abeyance, Retiring back a while sufficed at what they are, but never forgotten, I harbor for good or bad, I permit to speak at every hazard, Nature without check with original energy.

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