Developed by Curt Herzstark while imprisoned during WWII, the Curta Calculator is a mechanical marvel. Its features are quaint by today’s standard but the handheld cylindrical device can …

The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.

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May 23, 2025 · The Curta Calculator is a mechanical calculator invented by Curt Herzstark in the 1930s. It is one of the first portable calculators.

In this Instructable, we will construct a mechanical calculator called the Curta. I started this project because shortly after building my first 3D Printer I found a Youtube video describing the Curta …

The Curta is a very small mechanical calculation machine. It was invented by Curt Herzstark, and made by Contina AG Mauren, based in Mauren, Liechtenstein. It was in production from 1948 …

What's amazing about a Curta Calculator is that the entire device operates completely on mechanical power without any electricity to accurately compute an equation. The Curta …

Your Complete Curta Portal, for information about Curta and Contina Mechanical Calculators.

This is a fully operational, faithful 3× scale reproduction of the original Curta mechanism—not a static model. Contains nearly 400 individual parts, all assembled by hand with exacting …

Curta Type I Curta Type I. 52 mm diameter x 105 mm high (2" x 4"). Made in Liechtenstein 1948 - 1972. A stepped gear type calculator capable of the four functions, and more using special …