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| Author | Title | Year | |
|---|---|---|---|
| 1. | Bayley, Colin H. | Some varieties in the recent O.H.M.S. O' prints | 1950 |
| 2. | Bayley, Colin H. | Note on corrected dot 14c O.H.M.S. overprint [Peace issue] | 1951 |
| 3. | Bentham, Lorne Wm. | Dr. L.S. Holmes comes out with tests for spotting OHMS overprint flakes | 1956 |
| 4. | Gordon, W. C. | Revised list of Canadian O.H.M.S. issues, with all varieties as at Sept. 1, 1950 | 1950 |
| 5. | Higginson, T. B. | Some observations on the O.H.M.S. overprint plate blocks | 1950 |
| 6. | Holmes, L. Seale | A study of the O.H.M.S. overprints | 1955 |
| 7. | Jackson, Wm. T. | Canada's scarcest modern stamps | 1955 |
| 8. | Jackson, Wm. T. | What is new in Canadian official plate blocks | 1957 |
| 9. | Jarrett, Fred | O.H.M.S. overprints | 1951 |
| 10. | Richardson, Ed. | Canada O.H.M.S. - the narrow-spaced overprint | 1960 |