КЛ-1 – Карманная Логарифmicческая Линей - Slide rule

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Starting bid
€ 1

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Francisco Álvarez
Expert
Selected by Francisco Álvarez

Acquired extensive antiques knowledge through renovation works and running own antiques shop.

Estimate  € 120 - € 180
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Description from the seller

Hello
Today, on this auction, I have the pleasure of presenting to you

The Soviet circular slide rule KL-1 (КЛ-1), styled like a pocket watch, manufactured in the USSR.

This device was used by engineers and scientists to perform quick mathematical calculations, such as multiplication, division, squaring, or determining trigonometric functions.

Two crowns on the case allow rotating the inner dial and the logarithmic pointer to set the proper scales and read the results.

Hello
Today, on this auction, I have the pleasure of presenting to you

The Soviet circular slide rule KL-1 (КЛ-1), styled like a pocket watch, manufactured in the USSR.

This device was used by engineers and scientists to perform quick mathematical calculations, such as multiplication, division, squaring, or determining trigonometric functions.

Two crowns on the case allow rotating the inner dial and the logarithmic pointer to set the proper scales and read the results.

Details

Era
1900-2000
Manufacturer/brand
КЛ-1 – Карманная Логарифmicческая Линей
Weight
150 g
Number of objects
1
Country of Origin
Russia
Material
Glass, Metal
Condition
Excellent condition: barely used with minimal signs of wear
Height
5 cm
Width
5 cm
Depth
5 cm
Estimated period
1960-1970
PolandVerified
110
Objects sold
Private

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