Fort Sumter. Red, white & blue patriotic cover with design showing Eagle & Crossed Flags above Fort Sumter used to Canada & franked with 1861 10¢ green (small defect) with grid cancel & indistinct postmark below, light strike of "U. States/10 Paid" exchange handstamp in red & backstamped with arrival postmarks, some minor edge wear & toning on reverse, Fine. Estimate  $100 - 150. $0 (Image)