Stamps of Romania, 25 Sep 2001
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postage
2001, Jul 13 20th Century in 2001 issue unwmk p. 13.25
| - | 1500l | multi | Telephone pioneer Augustin Maior 1906 | |||
| - | 5300l | multi | Pioneer 10 1972 | |||
| - | 13500l | multi | First microprocessor 1971 | |||
| - | 15500L | multi | Hubble Space Telescope |
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