Parallel Rule with Protractor and Plotting Scale 1796

"Parallel Rule with Protractor and Plotting Scale" is a 1796 drawing instrument made by Lebbeus Dod, a renowned American instrument maker. This set, housed in the Metropolitan Museum of Art, exemplifies Dod's mastery in crafting precise and functional tools. The intricate design features a parallel rule with adjustable protractor and plotting scale, essential for surveying, drafting, and other technical applications. Dod's craftsmanship and innovative design demonstrate the evolving field of scientific instrumentation in the late 18th century.