Stamps of Christmas Island, 5 May 1980
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postage
1980, May 5 phosphate industry a issue unwmk (no perf info)
| - | 15c | multi | Surveyor Phosphate | |||
| - | 22c | multi | Drilling for Samples | |||
| - | 40c | multi | Sample Analysis | |||
| - | 55c | multi | Mine Planning |
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