Description

With a Myriad of Scales for Chart and Map Making,  English, c. early 20th century, stamped with the signature of Edward Gunter, Lt. Col., registered #270665. The 6″ (15 cm) long boxwood rule has beveled edges to the front, and is stamped both sides with a wealth of scales and equations for chart and map making, especially in surveying. Included are a rectangular protractor, linear reduction scales including with transversals, numerous map conversions including “Normal Scale of Slopes for Old Large Scale Maps,” etc. Units of yards, inches, miles, chains, links, meters, centimeters, kilometers, hours, etc. are used. In very fine condition, it is a most uncommon rule. We find Gunter’s instrument offered for sale in a 1907 edition of The Very Best English Goods. The design was first registered in 1896.