Airmail special delivery stamps of Canada
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airmail special delivery
1942 unwmk p. 12
| X | 16c | brtultra | 2-engine plane |
1943
| X | 17c | brtultra | 2-engine plane | — | — |
1946, Sep 16
| X | 17c | brtultra | 4-engine plane |
1947 (no perf info)
| X | 17c | brtultra | 4-engine plane | — | — |
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