2018-06-152018-06-15n.d.http://hdl.handle.net/20.500.11989/1199The front of the post card has an aerial view of Dunbar Cave in Clarksville, TN. On the back is a caption that reads, “Dunbar Cave, near Clarksville and For Campbell Kentucky, has long been a recreational center of National interest.”JPEG ImageClarksville (Tenn.)Dunbar Cave (Tenn.: Cave)Aerial viewsImage