Stamps of Papua New Guinea, 28 Jun 1967
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postage
1967, Jun 28 hydroelectrics & industries unwmk (no perf info)
| X | 5c | multi | Hydro Power | .20 | .20 | |
| - | 10c | multi | Chrysanthemum cinerariifolium | |||
| - | 20c | multi | tea | .20 | ||
| - | 25c | multi | Hydro Power | — | — |
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