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Washington, D.C. Construction of temporary war emergency buildings on the Mall, near 16th and 17th Streets, N.W. After the concrete mixture has partly set, it is shoveled into the top form. Sourced from the Library of Congress.

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Washington, D.C. Construction of temporary war emergency buildings on the Mall, near 16th and 17th Streets, N.W. After the concrete mixture has partly set, it is shoveled into the top form. Sourced from the Library of Congress.

More