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A Sound-Proof Building. If you shout in this building you cannot be heard, because it is sound-proof. The building located at the Bureau of Standards in Washington is used for testing building material to determine whether they will transmit or absorb sound. This information is valuable when constru
Public domain

A Sound-Proof Building. If you shout in this building you cannot be heard, because it is sound-proof. The building located at the Bureau of Standards in Washington is used for testing building material to determine whether they will transmit or absorb sound. This information is valuable when constru

Harris & Ewing · 1923 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
united statesglass negatives
Credit lineA Sound-Proof Building. If you shout in this building you cannot be heard, because it is sound-proof. The building located at the Bureau of Standards in Washington is used for testing building materia. 1923. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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