Building Technology Heritage Library

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Building Bridges in the 19th and 20th Centuries

Look back at construction and execution behind these infrastructure projects with... More

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A Visual History of Streetlighting from the 19th and 20th Centuries

Look back at the evolution of outdoor illumination design and technology with... More

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It's Gettin' Hot in Here: Furnaces of the 19th and 20th Centuries

Explore technological advancements in heating systems from the late 1800s to the... More

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20th Century Carpets and Rugs That Will Floor You

Flooring catalogs from the BTHL demonstrate carpet and rug options available... More

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20th-Century Hardware Design, Unhinged

Catalogs from the Building Technology Heritage Library document the evolution of... More

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Head Back to School with the Building Technology Heritage Library

Explore the history of K-12 design with trade catalogs from the 19th and 20th... More

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Assembly Required: A Brief History of 20th-Century Kit House Designs

The BTHL chronicles the evolution of kit house offerings in the 1900s. More

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A Visual History of the United States Gypsum Co.

Founded in 1901, USG is still the largest manufacturer of gypsum products in North... More

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Revisiting Kitchen Designs of the Early 20th Century

See the evolution of early 1900s kitchen appliance innovations that contributed to... More

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Throwback Thursday: Outfitting a 20th-Century Farmstead

Trade catalogs from the 1900s showcase the available infrastructure for farms in... More

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