US 26, 3¢ dull red (few minor perf flaws) tied on cover by AUGUSTA GA APR 11, 1861, double-circle postmark to Isaac W. French, Esq., Care E.S. Mills & Co., New York City, with scarce large showy blue illustrated Planters' Hotel, Augusta, Ga. advertisement on back flaps; Very Fine, Confederate Use of U.S. Postage. The small double-line Augusta postmark was used starting late in 1860, which reliably dates this cover to 1861; 2008 CSA certificate. $500.