Confederacy, Last Day Usage of United States Postage - May 31, 1861. "Griffin, Ga./May 31" (1861) cds on 1860 3¢ Star Die entire to Greenville, Ga., Very Fine and rare, a wonderful item mailed on the last day the United States Post Office Department ran the South's postal system (Pictured in Monroe Book, pg. 5). Estimate  $500 - 750. $0 (Image)