Up for sale is a genuine Curta Contina Type 1 mechanical calculator, serial number 33525, in working condition and complete with its original metal canister.

Often referred to as the “pepper grinder” calculator, the Curta Type I is one of the most beautifully engineered mechanical calculating devices ever made. Compact enough to fit in the palm of your hand, it performs addition, subtraction, multiplication, and division through precision mechanical operation.

Item Details:
Model: Curta Contina Type 1

Serial Number: 33525

Condition: Working – crank turns smoothly, carriage moves correctly, and registers operate as intended

Includes: Original protective metal can

Cosmetic Condition: A few small scratched with the age of the item but in good working order

About the Curta Type 1
The Curta Type 1 was manufactured in Liechtenstein by Contina AG Mauren between 1948 and 1970. Designed by Curt Herzstark, these calculators are highly collectible due to their precision engineering and historical importance in mechanical computation.

Serial number 33525 places this unit as being made in May, 1956, making it a desirable example for collectors and will be 70 years old this year.

Collector Information
Curta calculators remain highly sought after by collectors of:

Mechanical calculating machines

Engineering instruments

Slide rule & pre-electronic computing devices

Mid-century precision tools

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