National Museum of American History

This paper sheet gives “simplified instructions” for using an adder called the Magic Brain Calculator for addition, description, multiplication, and as an aid in division. It was received with adder 1987.0575.01.Currently not on view

National Museum of American History

National Museum of American History in Washington DC - Discover

American History Museum Exhibit Explores Pop Culture

Smithsonian National Museum of American History Renovation by SOM

D.C.'s new African American museum is a bold challenge to

National Museum of American History - Wikipedia

Smithsonian National Museum of American History Renovation – SOM

Smithsonian National Museum of African American History and

National Museum of American History - Carltonaut's Travel Tips

National Museum of American History in Northwest - Tours and