English: A 1923 picture of Harry Steenbock in his lab.
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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2005-12-18 12:49 Mmmbeer 262×372 (25078 bytes) A 1923 picture of Harry Steenbock in his lab.
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{{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|A 1923 picture of Harry Steenbock in his lab.}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transferred to Commons by User:Magnus Manske using [http://tools.wikime