Protective display lighting of historical documents : a report by the National Bureau of Standards to the Library of Congress / United States National Bureau of Standards.
|Corporate Author:||United States.|
[Washington, D.C.] : National Bureau of Standards, 1953.
United States. > Declaraton of Independence.
Archival materials > Conservation and restoration
Manuscripts > Conservation and restoration.
"Issued April 1, 1953."
ii, 8 p. :
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