Keywords: Postcard of Postojna Cave (12).jpg Postcard of Postojna Cave late other date century 19 http //www ebay com/itm/B95225-slovenia-postojnska-jama-adelsberger-grotte-calvarienberg-/332021244588 author PD-Slovenia 19th-century postcards of Slovenia Postcards of the interior of Postojna Cave Images from eBay |