STAMP ISSUED 1851, COVER HANDSTAMPED VICKSBURG, MISSISSIPPI, VIA STEAMER VICKSBURG. HANDWRITTEN ON BOTH SIDES OF THE COVER IN PENCIL IS "NEW ORLEANS & VICKSBURG RIVER MAIL;" I SUPPOSE THIS IS ACCURATE. SCARCE STEAMER POSTAL SERVICE. WILL BE MAILED IN LARGE ENVELOPE WITH FOLDED MATERIAL FOR PROTECTION.