File:1951PreservationOfDeclarationOfIndependenceByNBS.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:48, 25 April 2008		720 × 568 (271 KB)	commons>File Upload Bot (Magnus Manske)	{{BotMoveToCommons\|en.wikipedia}} {{Information \|Description={{en\|en:National Bureau of Standards preserving the en:United States Declaration of Independence in 1951. Source: [http://www.commerce.gov/opa/photo/DOC_100/100yrs/Gallery.htm Depart

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Image title	Preservation by NBS in 1951 of the Declaration of Independence (shown) and the Constitution of the United States followed ear's of research on the permanence of governmental documents. Light, heat, humidity, and many other factors were assessed, but the principal enemy of records proved to be the common air pollutant, sulphur dioxide.
Short title	Preservation of the Declaration of Independence
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop 7.0
File change date and time	09:37, 22 April 2003
Color space	sRGB
Copyright status	Copyright status not set
IIM version	2