Kurt Hielscher was a German photographer and he traveled extensively around Europe in the 1910s, 1920s and 1930s, and was the author of several successful books with landscape and architecture photographs about Italy, Spain and Germany. Because of his work, he was invited to Belgrade by the government of Kingdom of Serbs, Croats and Slovenes.
We must note that this was the official name for the first eleven years of its existence, the term “Yugoslavia” was its colloquial name from its origins. In mid-1920s Hielscher travel across the kingdom and create a book with images of the landscape, state and his people.
http://www.slavorum.org/stunning-old-ph ... the-1920s/