N/A Sterling No 594 Slide Rule 1965 Decimal Trig Log w/ Case Manual USA

Vintage Sterling Decimal Trig Log-Log Slide Rule – Made in USA (1965) Classic mid-century slide rule manufactured by Sterling Plastics Co., marked ©1965. This precision calculating tool was widely used by engineers and students prior to electronic calculators. This set includes the original slide rule, plastic case, and instruction manual. Nice complete example with original manual and case Condition: • Slide rule is clean with clear, legible scales • Cursor moves smoothly • Original plastic case included • Previous owner's name/marking is written on the case (see photos) • Instruction manual included with visible age wear/creasing • Overall good vintage condition Features: • Decimal Trig Log-Log scales • Made in U.S.A. • Complete set with case and manual • Great for collectors, display, or vintage engineering enthusiasts This is a nice complete example from the 1960s and a great addition to any scientific instrument collection.