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KEYWORDS: PHYSICAL ENVIRONMENT

Results: 81 - 100 of 234 total   Next

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Date Format Image Collection
October 22, 1861 Government Document    Document
August 25, 1863 Patent    Document
December 18, 1866 Patent    Document
November 10, 1863 Patent    Document
May 10, 1853 Patent    Document
June 19, 1894 Patent    Document
December 25, 1894 Patent    Document
May 13, 1856 Patent    Document
1970 Article    Document
May 1933     Document
April 1933 Article    Document
April 1932 Article    Document
February 28, 1941 Ephemera    Document
January 4, 1832 Government Document    Document
January 11, 1938 Correspondence    Document
October 7, 1938 Correspondence    Document
October 29, 1938 Correspondence    Document
October 31, 1938 Ephemera    Document
1962 Article    Document
February 1934 Article    Document
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