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| Author | Title | Year | |
|---|---|---|---|
| 1. | Barry, Bill | New style hammers in Saskatchewan | 1988 |
| 2. | Gignac, Claude | Les oblitérations circulaires des bureaux de poste du Québec - période 1979-1989 | 1989 |
| 3. | Campbell, Frank W. | Early Canada circle markings | 1944 |
| 4. | Cottin, Denis | Les marques métalliques manuelles "grand cercle" de 30 et 36mm | 1987 |
| 5. | Cottin, Denis | [Les marques métalliques manuelles " grand cercle" MP-30mm] | 1985 |
| 6. | Cummings, Melanie | Pictorial cancels bring tiny communities to forefront | 2006 |
| 7. | Felton, Jim | Sherbrooke, Quebec: timemark practices during the late Victorian era | 1989 |
| 8. | Gignac, Claude | Les timbres à date de format grand cercle (30-31mm et 36mm) | 1990 |
| 9. | Hughes, J. Paul | Proofs strikes of Canada | 1989 |
| 10. | Niedermair, Hans | Port Hood postmark honours local boy MacInnis [pictorial cancels, 2003] | 2004 |