1857, 1¢ blue, type II, horizontal pair, plate 2, left stamp with nibbed perf, in combination with 1857, 2¢ dull red on British Open Mail cover to Cape Town, Cape of Good Hope, Africa, with bold "Richmond, N.Y., Jun 18" origin cds alongside, red "New York, Br. Pkt, Jun 19" exchange cds, manuscript rates and reverse with red 1861 receiving postmark, Very Fine; with 2014 P.F. certificate. Scott Nos. 20+26  Estimate $2,000 - 3,000. $0 (Image)