Stamps of Canada, 4 base month
1 to 50 of 266
postage
1937, Apr 1 1937 issue unwmk p. 12 (11 stamps)
1937, Apr 15 1937 coil issue p. 8v
| X | 1c | grn | King George VI | — | — | |
| X | 2c | brn | King George VI | |||
| X | 3c | car | King George VI |
1949, Apr 1 p. 12
| X | 4c | dpgrn | John Cabot's ship | ships |
1950, Apr 20 1950c issue p. 9.5v
| X | 1c | grn | King George VI | |||
| X | 2c | sep | King George VI | — | — | |
| X | 3c | rosevio | King George VI | — | — | |
| X | 4c | dkcar | King George VI |
1952, Apr 1 paper production issue p. 12
| X | 20c | gray |
1953, Apr 1 1st wildlife week issue
| X | 2c | bl | polar bear | |||
| X | 3c | blkbrn | moose | |||
| X | 4c | ind | bighorn sheep |
1954, Apr 1
| X | 15c | gray | gannet |
1954, Apr 1 2nd wildlife week issue
| X | 4c | gray | walrus | |||
| X | 5c | ultra | beaver |
1955, Apr 4 3rd wildlife week issue
| X | 4c | dkpur | muskox | |||
| X | 5c | bl | whooping cranes in flight |
1956, Apr 12 4th wildlife week issue
| X | 4c | dkvio | caribou | |||
| X | 5c | bl | mountain goat |
1957, Apr 10
| X | 5c | blk | common loon |
1959, Apr 2 NATO 10th issue
| X | 5c | viobl | globe showing NATO countries |
1960, Apr 20 Girl Guides 50th issue
| X | 5c | multi | Girl Guides emblem |
1961, Apr 19
| X | 5c | ultra | Arthur Meighen |
1964, Apr 8
| X | 5c | multi |
1966, Apr 13 300th anniversary of the landing of La Salle in Canada issue
| X | 5c | dkgrn | René Robert Cavelier called La Salle 1643-1687 | ships |
1967, Apr 28 Expo 67 issue
| X | 5c | multi |
1968, Apr 10 p. 11
| X | 5c | multi | narwhal |
1970, Apr 15 Henry Kelsey 300th issue p. 12x12.5
| X | 6c | multi | Henry Kelsey |
1971, Apr 14 seasons issue p. 11
| X | 6c | multi | spring | |||
| X | 6c | multi | summer | |||
| X | 7c | multi | autumn | |||
| X | 7c | multi | winter |
1972, Apr 7 heart disease issue p. 12x12.5
| - | 8c | car |
1973, Apr 18 Jeanne Mance death 300th issue p. 11
| X | 8c | multi | Jeanne Mance 1606-1673 |
1975, Apr 4 Indians of the Subarctic issue - Canadian Indians (no perf info)
| - | 8c | multi | Perf: 13½ | |||
| - | 8c | multi | Perf: 13½ | |||
| - | 8c | multi | Indians of the Subarctic | |||
| - | 8c | multi |
1978, Apr 26 Cook 250th issue p. 13.5
| X | 14c | multi | Captain Cook |
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