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The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Galvanized sheet steel of 24 gauge is used as corner reinforcement. Screen door construction demonstration. Charles County, La Plata, Maryland." The New York Public Library Digital Collections. 1941. https://old-digitalcollections.nypl.org/items/35f14a90-ae62-013c-487d-0242ac110004
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Galvanized sheet steel of 24 gauge is used as corner reinforcement. Screen door construction demonstration. Charles County, La Plata, Maryland." New York Public Library Digital Collections. Accessed September 26, 2026. https://old-digitalcollections.nypl.org/items/35f14a90-ae62-013c-487d-0242ac110004
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. (1941). Galvanized sheet steel of 24 gauge is used as corner reinforcement. Screen door construction demonstration. Charles County, La Plata, Maryland. Retrieved from https://old-digitalcollections.nypl.org/items/35f14a90-ae62-013c-487d-0242ac110004
<ref name=NYPL>{{cite web | url=https://old-digitalcollections.nypl.org/items/35f14a90-ae62-013c-487d-0242ac110004 | title=
(still image)
Galvanized sheet steel of 24 gauge is used as corner reinforcement. Screen door construction demonstration. Charles County, La Plata, Maryland., (1941)|author=Digital Collections, The New York Public Library |accessdate=September 26, 2026 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>