| Cham (cartoonist) La Photographic Militaire 1861, 20 February Magazine page, detail Private collection of Laure Deratte LL/104440 Translation provided by Patrick Ballanger, 13 September 2020.
Of the difficulty that will be found to establish photography in a stable manner in the cavalry regiments.
L'Illustration, Journal Universel, 20 February 1861
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