1851, 1¢ blue, type IIIa, strip of three. Strip in combination with two #7, positions 55-56-57R1e, position 55 is Type IIIa; on folded letter with lightly struck "U.S. Express Mail, N.Y." cds; scarce combination of stamps & cancel., Very Fine and attractive. Scott No. 8A+7+7  Estimate $300 - 400. $0 (Image)