VINTAGE Mini Logarithmic RULER Soviet Slide Rule 1971 With Case USSR Calculator

Vintage logarithmic ruler slide rule calculator Kyiv Ukraine 1971

Vintage Soviet Slide Ruler Logarithmic USSR in Original Case

Vintage Soviet logarithmic slide rule USSR in original case 1976 Moscow Original

Vintage Soviet logarithmic slide rule USSR in the original case Made in 1976

Soviet USSR Logarithmic Slide Rule in Original Case Ukraine Original Vintage

Vintage Soviet Slide Ruler Logarithmic USSR in Original Case