File:John Backus at control panel at60-inch cyclotron.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	06:23, 2 February 2023		3,000 × 2,400 (1.86 MB)	commons>LittleDwangs	Uploaded a work by Donald Cooksey, Lawrence Berkeley National Laboratory from [https://catalog.archives.gov/id/7665007 John Backus at control panel at60-inch cyclotron. Cooksey 15-28, March 1, 1939. (Photographer: Donald Cooksey)], U.S. National Archives and Records Administration with UploadWizard

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Camera manufacturer	Artix
Camera model	ArtixScan 1800f
Width	3,000 px
Height	2,400 px
Bits per component	16
Compression scheme	Uncompressed
Pixel composition	Black and white (Black is 0)
Orientation	Normal
Number of components	1
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS6 (Windows)
File change date and time	18:36, 2 April 2013
Date and time of digitizing	12:11, 8 July 2009
Color space	Uncalibrated
Date metadata was last modified	14:36, 2 April 2013
Unique ID of original document	uuid:C18526B42C71DE11BEAFDCCA78E9187D
Copyright status	Copyright status not set