Museum object · Slavery and Freedom Objects
T-square tool
mid 19th-mid 20th century
Smithsonian NMAAHC collection
Source catalog description
This description refers to material held by Smithsonian National Museum of African American History and Culture. Visual details below describe the original material.
A T-square architectural tool. The T-square has a wooden blade and stock and is roughly T-shaped. The blade is inserted into a rectangular cutout in the stock and it projects downwards at a ninety-degree angle. The blade is off center from the middle of the stock. In addition, there is a small, diagonal, support beam nailed to the blade and the stock, close to the meeting point. On one side of the T-square, the back edge of the blade has markings at regular intervals, as does the top edge of the stock.
Explore Smithsonian National Museum of African American History and Culture ↗
Sources & collection details
Smithsonian National Museum of African American History and Culture — original record ↗
Catalog metadata · CC0 · Source checked 2026-10-13
Catalog reference: 2017.108.23.90
Continue exploring Series 1
Slavery, Resistance & Freedom →Arts, Music & Culture →
Explore all Series 1 cards →