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Museum object · Slavery and Freedom Objects

T-square tool

mid 19th-mid 20th century

Smithsonian NMAAHC collection

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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.

Sources & collection details

Smithsonian National Museum of African American History and Culture — original record ↗

Source collection ↗

Catalog metadata · CC0 · Source checked 2026-10-13

Catalog reference: 2017.108.23.90

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