Product characteristics (Specifications):

• Brand: Unknown / Soviet

• Model: KL-1

• Type: Mechanical slide rule

• Country/region of manufacture: USSR

• Vintage: Yes

• Material: Metal

• Era: Cold War / Soviet era

• Condition: Used can be seen in the photo

There are some scratches and abrasions, but they don't affect the operation.

Description of condition (Condition): works as per photo

Original Soviet mechanical slide rule KL-1.

Used condition with minor signs of age. All scales and marks are legible.

Ideal for collectors of vintage calculators, Soviet technology or retro mathematical instruments.

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Description (Description):

For sale is a vintage mechanical slide rule KL-1, made in the USSR.

This type of analog calculator was used by Soviet engineers, scientists and students during the Cold War.

✅ Authentic Soviet teaching aid

✅ Mechanical slide control

✅ Compact and functional

✅ All markings in Russian

✅ Excellent collectible

A real piece of Soviet engineering history. Ideal for retro enthusiasts, collectors or for display.