(Civil War Patriotic) the Innocent Cause of the War, slave portrait design on cover to Buffalo, N.Y., franked with 1857, 3¢ dull red tied by large "Paid" in grid handstamp, red "Boston, Mass., Jun 3" cds, Very Fine and choice, a lovely example of this very scarce design. Scott No. 26  Estimate $300 - 400. $0 (Image)