Baltic Vintage and Classic Car Rally map | Source: http://www.vihulamanor.com/retrobalticrally/program.html
Kurland
1817 Poland by John Thomson | Source: http://lithuanianmaps.com/Maps1816-25.html
1818 Pinkerton Map of Poland – Geographicus | Source: http://lithuanianmaps.com/Maps1816-25.html
1944 Kurland Russian German front (Army Grop North) | Source: http://www.warrelics.eu/forum/battlefield-archaeology/digging-in-kurland-20971-12/
1749 – Die Hertzogthümer Curland und Liefland by JG Schreibern | Source: http://commons.wikimedia.org/wiki/File:Die_Hertzogth%C3%BCmer_Curland_und_Liefland.jpg