National Museum of American History

This 51-1/2" wooden T-square has a scalloped top piece attached to the handle by 6 brass screws. A hole at the end of the handle is for hanging the instrument. It has no markings, but paint and ink stains on the handle indicate it was heavily used.

National Museum of American History in Northwest - Tours and Activities

American History Museum Exhibit Explores Pop Culture

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

National Museum of African American History and Culture (NMAAHC)

The National Museum of American History: Abbott, Shirley: 9780810913639: : Books

National Museum of American History — Museum Review

National Museum of American History in Washington DC - Coast2CoastWithKids

National Museum of American History, Northwest Vacation Rentals: house rentals & more

The sad & sorry Smithsonian

National Museum of African American History and Culture – Museum Review

Smithsonian National Museum of African American History and Culture / Freelon Adjaye Bond/SmithGroup

Smithsonian National Museum of African American History and Culture