Vintage German Aristo Scholar 0903 LL slide rule For Sale

Vintage German Aristo Scholar 0903 LL slide rule.Sold as is.This tool was widely used by engineers and students for complex mathematical calculations before the advent of electronic calculators in the 1970s.
Key features:Manufacturer: Aristo (Germany).Model: 0903 LL (Scholar series).Manufactured: Circa 1960s.Material: High-quality plastic (Plexiglas/Astralon).Functions: Performs multiplication, division, exponentiation, root calculations, logarithms, and trigonometric functions. The ruler is equipped with scales for calculating logarithms, squaring, cubing, and trigonometric functions.