cover 1888 (9 Oct.) XU5 registered to Canada, endorsed "via New York", bearing 1d. carmine overprinted "Revenue" singles (3) and horizontal strip of three (one with slight soiling) tied by "DOMINICA/C/OC 9/88" c.d.s., showing "R" in red oval; XU5, backstamped New York (19 Oct.) and Buffalo (20 Oct.), with minor faults. Scarce. S.G. R6. Photo