National Museum of American History

This brass rolling ruler is engraved with measurements on all four sides. There are rollers on either side of the ruler, connected by an axle. The object is well worn with a dent on one corner, and it is screwed together.

American History Museum Exhibit Explores Pop Culture

American History Museum Exhibit Explores Pop Culture

National Museum of African American History & Culture

NATIONAL MUSEUM OF AMERICAN HISTORY - 3364 Photos & 722 Reviews

National Museum of American History - Carltonaut's Travel Tips

National Museum of African American history and culture

National Museum of American History - EwingCole

National Museum of American History (Smithsonian): The District

Ultimate Guide To The National Museum of American History