Stamps of Botswana, 7 Jul 1980
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postage
1980, Jul 7 Early mining issue unwmk (no perf info) (6 stamps)
| X | 5t | multi | Rock breaking | |||
| X | 10t | multi | Ore hoisting | |||
| X | 15t | multi | Ore transport | |||
| X | 20t | multi | Ore crushing | |||
| X | 25t | multi | Smelting | |||
| X | 35t | multi | Tools products |
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