2018-06-152018-06-15n.d.http://hdl.handle.net/20.500.11989/1428On the front of the post card is an image of a cannon at Fort Donelson. On the back is a caption that says, “All is silent where cannon blasts once echoed for miles. Here on February 14, 1862, Southern gunners and Union tars exchanged ‘Iron Valentines’ during their duel.”JPEG ImageStewart County (Tenn.)Fort Donelson National Battlefield (Tenn.)Lower Water BatteryImage