Stamps of Cuba, 20 Jul 1994
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postage
1994, Jul 20 Scientists (1994) unwmk p. 12.5 (6 stamps)
| X | 5c | multi | Michael Faraday | |||
| X | 10c | multi | Marie Sklodowska-Curie | |||
| X | 20c | multi | Pierre Curie | |||
| X | 30c | multi | Albert Einstein | |||
| X | 40c | multi | Max Planck | |||
| X | 50c | multi | Otto Hahn |
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