Ethnological Map of European Turkey and her Dependencies at the Time of the Beginning of the War of 1877, by Karl Sax, I. and R. Austro-Hungarian Consul at Adrianople. Published by the Imperial and Royal Geographical Society, Vienna 1878.
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Bild: Carl Sax | Ethnological Map of European Turkey and her Dependencies at the Time of the Beginning of the War of 1877, by Karl Sax, I. and R. Austro-Hungarian Consul at Adrianople. Published by the Imperial and Royal Geographical Society, Vienna 1878 | Wikimedia Commons | Public Domain.