'The Carpathian Passes', 1919. Creator: Unknown.
'The Carpathian Passes', 1919. Map showing mountain passes in the Carpathians, a mountain range which stretches from present-day Czech Republic, through Slovakia, Poland, Hungary, Ukraine, Serbia and Romania. From The History of the Great European War: its causes and effects, Vol. IV, by W. Stanley Macbean Knight. [Caxton Pulishing Company, Limited, London, 1919]