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FINE & EARLY BRASS DIAGONAL SCALE RULE - CIRCA 1790

Sale price $120.00 USD Regular price $160.00 USD

This rule was found with a brass level stamped Gourdin à Paris and dated 1788 and a small sector rule (both also for sale on this website). It measures 9 3/4" x 1 1/2" and has designations "1 A 1250" and "1 A 2500". Otherwise it has numerous lines and numbers and is in absolutely pristine condition for its age. Uncleaned as found.