| Louis Auguste Bisson Studio label for "L.A. Bisson Fils." - "Portraits au Daguerréotype, exécutés à l'ombre, à l'intérieur et en quelques secondes" 1842 Studio label Private collection of Richard Kakou LL/119225 (Alan Griffiths, 29 March 2022) The statement on the exposure time in seconds is important as many people wrongly believe that exposure times were very long.
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