Adolphe Braun
1868, 25 April
An extraordinary step has lately been taken in Photography.

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In the section "Foreign Notes" in "Every Saturday: A Journal of Choice Reading, Selected from Foreign Current Literature", April 25, 1868, Volume 5, No.121, p.543.
 
As extraordinary step has lately been taken in photography. By a process which is still a secret, M. Adolphe Braun, of Dornach (Haut-Rhin), has produced an immense number of absolute fac-similes of the best drawings left by the great masters. These new photographs are superior to all former works of the same kind in the ordinary excellences of detail and surface-quality. They also reproduce exactly the tint of the original, neutral, brown, red, or greenish, as the case may be. They are confidently asserted to be absolutely permanent.
 
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