Stamps of Bolivia, development design type, missing design, not overprinted
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postage
1973, Nov 26 development unwmk (no perf info)
| - | 20c | Tin mine | ||||
| - | 90c | Bismuth mine | ||||
| - | 1b | Gas plant |
airmail
1973, Nov 26 development
| - | 1.40b | multi | Highway bridge 1Y4 | |||
| - | 2p | multi | Railway to Beni |
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