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| Author | Title | Year | |
|---|---|---|---|
| 1. | Bellack, George | Unusual 1897 registered cover | 1991 |
| 2. | Cheshire, R.S. | The precancel specialist | 1979-1990 |
| 3. | Bosch, Warren | 1c green admiral - Marler type R1 re-entries | 1985 |
| 4. | Bosch, Warren L. | Parallel lines - Plus a misplaced entry ?? [3˘ Admiral] | 1985 |
| 5. | Cheshire, R. S. | Hints on identification of admiral precancels | 1978-1979 |
| 6. | Cheshire, R.S. | Precancel varieties | 1980 |
| 7. | Cheshire, R.S | Varieties and errors in precancels | 1979 |
| 8. | Chung, Andrew | The Canadian postage due stamps | 1985 |
| 9. | Walker, Lawrence A. | The Montreal duplex postmarks | 1986 |
| 10. | Walburn, H. G. | The Canada precancel handbook by the Precancel Committee. Assistant editors and co-ordinators, J. E. Kraemer, H. Reiche, T. A. Stott. | 1988 |