The Viennese Oskar Kramer studied chemics and philosophy in Berlin, but never finished his studies. He returned to Vienna to work as a publisher of photographic albums and, in the 1860s, became the leading photographic merchant in Austria-Hungary. He was part of the Viennese Photographers’ Association that had exclusive photographic rights to document the Vienna world’s fair of 1873.

Fellner-Feldhaus, M. (2004). Fotografischer Schauplatz Weltausstellung. Dokumentation und Inszenierung. In Technisches Museum Wien (Ed.), Welt ausstellen. Schauplatz Wien 1873 (pp. 11–34). Technisches Museum Wien.

Niemand, F. (2019). „Orientalische“ Architektur und fotografische Dokumentation der Wiener Weltausstellung 1873 [Masterthesis]. Universität Wien.