| Unidentified photographer Photographic utensils 1891 Book illustration Private collection of Bálint Flesch? I'm indebted to Bálint Flesch for bringing this to my attention (16 July 2020) LL/102532 Fritz Schmidt, 1891, Compendium der practischen Photographie fur Amateure und Fachphotographen, (Karlsruhe: Otto Nemnich)
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