Extremely Rare Stanley No. 6 Engineer’s RuleWith Gunter’s Slide and Full Engineer’s Scales — Made Between 1854–1905An exceptionally scarce and highly sophisticated Stanley No. 6 Engineer’s Rule, produced between 1854 and 1905, during the formative decades of Stanley’s most advanced rulemaking. Equipped with both Gunter’s slide and a complete suite of engineer’s scales, this is one of the most technically ambitious and least‑seen rules in the entire Stanley catalog.
The No. 6 stands among the rarest and most advanced rules Stanley ever produced. Its combination of a Gunter’s slide and engineer’s scales places it at the crossroads of early American engineering, surveying, and mathematical instrumentation. Surviving examples are extraordinarily difficult to find.
A true centerpiece for collectors of early American measuring instruments, slide rules, or advanced Stanley specialty tools.
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SKU: TBBCategories: Measuring & Gauges, Shop All, Stanley Tools
