cover 10c vermilion, 17c black (9, 11; S.G.17, 19), tied by St. John "1" in oval grids to Sep. 1867 folded cover "Via Halifax N.S." to France and redirected upon arrival, manuscript "More to pay" deleted, red London transit datestamp and red oval "PD"; very fine and an extremely rare usage of the 17c helping to pay the 27c rate to France, with 1963 B.P.A. certificate, ex Burrus and Kanai.

Details
cover 10c vermilion, 17c black (9, 11; S.G.17, 19), tied by St. John "1" in oval grids to Sep. 1867 folded cover "Via Halifax N.S." to France and redirected upon arrival, manuscript "More to pay" deleted, red London transit datestamp and red oval "PD"; very fine and an extremely rare usage of the 17c helping to pay the 27c rate to France, with 1963 B.P.A. certificate, ex Burrus and Kanai.