RIZOFF D., "Les Bulgares dans leurs frontières historiques, ethnographiques et politiques. Atlas contenant 40 cartes / The Bulgarians in their historical, ethnographical and political frontiers. Atlas with 40 maps / Die Bulgaren in ihren historischen, ethnographischen und politischen Grenzen. Atlas mit 40 Landkarten", Wilhelm Greve, Berlin, 1917. In square 4o, p. 74. Text in German, Enlgish, French and Bulgarian. Following the long Introduction by D. Rizoff, then Minister of Bulgaria in Berlin, every other large square-format page is a large coloured map of the region. Semi leather bound, gilt title on spine. Original paper covers inside. Scarse and very good copy.