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| Author | Title | Year | |
|---|---|---|---|
| 1. | Pelletier, Burroughs | Dies of the 10c and 20c 1871-1911 Quebec law stamps | 1952 |
| 2. | What is a re-entry? A die proof? | 1959 | |
| 3. | 1935 Jubilee: essay and die proof discoveries | 1980 | |
| 4. | Aretz, F. | Canada - die I and II of stamps Scott's type A59 | 1932 |
| 5. | Behr, Eldon, A. | Dies of King Edward VII issue | 1964 |
| 6. | Bélanger, Marcel | Canada ... the 1912 dies | 1939 |
| 7. | Bélanger, Marcel | Dies in Canada stamps | 1942 |
| 8. | Bélanger, Marcel | Canada 1930-31 die I and die II | 1945 |
| 9. | Boggs, Winthrop S. | Canada - some notes on die proofs | 1945 |
| 10. | Boggs, Winthrop S. | Caribou issue of Newfoundland 1919: twelve stamps produced from only two secondary dies | 1947 |