This is an original vintage Soviet logarithmic slide rule manufactured in 1952 in Kyiv, USSR (Soviet Union). This classic mathematical instrument was highly valued by Soviet engineers, scientists, and students before the era of electronic calculators. The slide rule features a solid wood core base with celluloid facings and precise engraved logarithmic scales. The front side contains standard computing scales, while the back features highly detailed mathematical, physical, and engineering reference tables printed in Russian, including material densities, formulas for geometric volumes, and constant values. It comes complete with its original two-piece dark protective cardboard storage case. A perfect piece for collectors of vintage computing technology, math instruments, and Soviet era history.

Condition
The item is in good vintage condition consistent with its age and use. The wooden body, celluloid facings, and inner sliding mechanism are fully functional and move smoothly. The metal and plastic cursor frame is intact with its original alignment line. The scales and text on both sides remain crisp, clear, and perfectly readable. The original cardboard case shows typical exterior shelf wear, minor scuffs, and age-related distressing on the edges and corners, but it remains sturdy and holds the ruler securely. Please review the provided photos carefully to evaluate the exact cosmetic condition.

Specifications
Type: Simplex Logarithmic Slide Rule
Year of Manufacture: 1952
Manufacturer: State Factory "Konstruktor" (Kyiv, USSR)
Materials: Wood core, celluloid facings, metal/plastic cursor, cardboard case
Language: Russian text on the reference tables and case
Ruler Length: Standard 25 cm (10 inches) scale length
Country of Origin: USSR (Soviet Union)
Included Items: Slide rule, sliding cursor, original two-piece case