Keywords: Postcard of Postojna Cave 1940-45.jpg Postcard of Postojna Cave https //www kupindo com/Srbija-i-ex-YU-do-1945/35534743_Postojnska-jama-Slovenija-razglednica-1651- author between 1940 1945 PD-Slovenia 1940s postcards of Slovenia Postcards of the interior of Postojna Cave Images from Kupindo |