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 African American History and Culture - Ralph Appelbaum Associates

Explore Who We Are at the National Museum of American History - MidAtlantic Daytrips

National Museum of American History

National Museum of American History - Carltonaut's Travel Tips

National Museum of African American History & Culture, Washington, DC, USA

National Museum of American History Collects History Related to Lesbian, Gay, Bisexual and Transgender History

National Museum of American History Public…

National Museum of American History

File:Smithsonian National Museum of American History - Seinfeld The Puffy Shirt (120435360).jpg – Travel guide at Wikivoyage