National Museum of American History

This compass–with six needles, and a flat card with central buoyancy–was Ritchie’s most successful design and was widely used by American merchant ships and the U.S. Navy. The Ritchie ledgers, now held by Ritchie Navigation, indicate that this example was manufactured on Jan.

Smithsonian Institute's National Museum of African American

Smithsonian National Museum of American History : Washington DC

National Museum of African American History and Culture

National Museum of African American History and Culture

Smithsonian National Museum of American History - Cinnabar

National Museum of American History, West Wing - EwingCole

National Museum of American History

Ultimate Guide To The National Museum of American History

National Museum of African American History and Culture

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