| George Watson First Synchronized Powder Flash 1920 Gelatin silver print 25.7 × 20.3 cm (10 1/8 × 8 ins) J. Paul Getty Museum Object Number: 2001.65.1,
© The Watson Family Photo Collection LL/67826 Included in the J. Paul Getty Museum exhibition "In Focus: Electric!" (April 5–August 28, 2016)
www.getty.edu/art/exhibitions/focus_electric/
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