Stamps of Canada, 25 Jun 1987
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postage
1987, Jun 25 Canada Day 1987 issue - communications inventors unwmk p. 13.25
| - | 36c | multi | Reginald Fessenden | |||
| X | 36c | multi | C. Fenerty | |||
| X | 36c | multi | Half-tone Engraving GE Desbarats W Leggo 1869 | |||
| - | 36c | multi | Undersea Telegraph FN Gisborne 1852 |
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