German concentration camps 1933-1945 : history, related philatelic material and system of registration of inmate mail

Name: German concentration camps 1933-1945 : history, related philatelic material and system of registration of inmate mail
Author: /author/Erik_L%C3%B8rdahl_(Tyske_milit%C3%A6re_avdelinger_og_feltpostnumre_tilknyttet_Norge_1940-1945)