Details
cover 5c blue (10), used in combination with Canada 1c brown red (22) and tied by Canadian "4" in two-ring numeral cancels to Apr. 1869 cover from Halifax via St. John to Boston: the cover trimmed at left and very slightly soiled, otherwise fine; a rare and possibly unique usage, 6c to Boston, almost two years after Confederation (Nova Scotia stamps had been withdrawn but not demonetized), ex Vincent Graves Greene