| Unidentified photographer/creator Representative Art Folios issued for Die Kunst in der Photographie 1904, 1907, 1908 Folio covers Photoseed Photograph courtesy PhotoSeed.com LL/15791 1. Green cardstock art folio issued for: Die Kunst in der Photographie: 1904: publisher: Wilhelm Knapp (Halle) (Private collection)
2. Red cardstock art folio issued for: Die Kunst in der Photographie: 1907: publisher: Wilhelm Knapp (Halle) (Spencer Photographic Archive)
3. Gray cardstock art folio issued for: Die Kunst in der Photographie: 1908: publisher: Wilhelm Knapp (Halle) (Spencer Photographic Archive)
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