Public domain
Defense housing, Erie, Pennsylvania. Cement foundation blocks ready to be mortared in place in the five-foot foundation ditch. This depth affords protection against frost which is particularly heavy in this area. Since, for reasons of economy, no basement is provided, cinder is used to fill in to fl
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Credit lineDefense housing, Erie, Pennsylvania. Cement foundation blocks ready to be mortared in place in the five-foot foundation ditch. This depth affords protection against frost which is particularly heavy i. 1941-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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