National Museum of American History

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This disentanglement puzzle consists of two entangled bent nails that are to be separated.A solution to the puzzle is given in a 1920 A.C. Gilbert publication cited below.

National Museum of American History - History and Facts

Smithsonian National Museum of American History - WanderDisney

National Museum of African American History & Culture — WeShouldDoItAll

Smithsonian Museum of American History

File:Smithsonian National Museum of American History - Seinfeld The Puffy Shirt (120435360).jpg - Wikimedia Commons

About National Museum of American History

National Museum of American History

Guide to the National Museum of American History

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Five Facts about the Smithsonian's African American Museum of History and Culture - New Orleans Museum of Art

How the National Museum of African American History and Culture Works - The Atlantic

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