D. Levinsky,Bureau of Standards,Washington,DC,District of Columbia,1938

Title: Government discovers method to preserve [...] (3) Test for fading. D. Levinsky of the Bureau of Standards is pictured exposing a developed film to light from a carbon arc to find whether the photographic image fades. The carbon-arc light simulates daylight closely and therefore is used for many materials as a standard source of illumination for this purpose, 7/8/38
Creator(s): Harris & Ewing, photographer
Date Created/Published: [19]38 July 8.
Notes:
Gift; Harris & Ewing, Inc. 1955.
General information about the Harris & Ewing Collection is available at http://hdl.loc.gov/loc.pnp/pp.hec
Temp. note: Batch six.
Glass negatives.
Bookmark /hec2009015772/
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