Louis Auguste Bisson 1841 Studio label for "L.A. Bisson Fils." - Portraits au Daguerréotype, à l'ombre, à l'intérieur et en quelques secondes"
Studio label Private collection of Richard Kakou (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.
