supplementary mail cover to England, bearing 1919 36c. and 1928 4c. and 10c., tied by St. John's machine d.s. and showing on reverse Harbour Grace c.d.s. (9.10). Fine" /> Air Mail cover 1930 (25 Sept.)<I> "Columbia"</I> supplementary mail cover to England, bearing 1919 36c. and 1928 4c. and 10c., tied by St. John's machine d.s. and showing on reverse Harbour Grace c.d.s. (9.10). Fine | Christie's