all
- Prussian transport company, 19th century
- Institute for Art History at the University of Marburg
- Berlin-based slide manufacturer
- German photographer and slidemaker who worked for the Staatliche Museen in Berlin
- German photographic printing company, active 1894-1921
- German documentation and research institute, founded 1913
- German lantern slide and photograph vendor, ca. 1890s-1950s