1879, 15¢ red orange. Tied by cork cancel on 1887 registered cover to Lupkow, Poland (Austrian), reverse with "Plymouth, Pa., Sep 2, 1887" origin cds and N.Y. registry oval date stamp, straight line and circular receiving postmarks; couple cover tears and edge wear, Fine, a very rare destination. Scott No. 189  Estimate $200 - 300. $0 (Image)

1879, 15¢ red orange. In combination with 1881, 1¢ gray blue + 1883, 2¢ red brown on registered 2¢ Plimpton entire to Brake, Germany, tied by target cancels and purple Milwaukee, Wis. straight line registry date stamp, N.Y. transit and receiving backstamps; stamps with very minor perf toning at top, Very Fine. Scott No. 189+206+210  Estimate $200 - 250. $0 (Image)

1879, 15¢ red orange. O.g., very lightly hinged, exceptional centering, rich vibrant color, bright and fresh, Extremely Fine; with 2007 P.S.E. certificate. Scott No. 189  $350. $0 (Image)