Nationalitaten-Karte der Provinz Ostpreussen.., 1900–1907

Ethnographic Map of Lithuania Minor: East Prussian Communities by Mother Tongue. Gotha, published in 1907 by Justus Perthes at a scale of 1:500 000, distinguishing between German-Polish- and Lithuanian-speaking communities. With higher-resolution DETAIL images of the Memelland, Lithuania Minor, and communities near Kovno and Suwalki guberniyas.