Stamps of South Africa - Transkei, 26 Sep 1991
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postage
1991, Sep 26 Famous People of Medicine (1991) unwmk (no perf info)
| - | 25c | multi | Emil von Behring | |||
| - | 40c | multi | Camile Guerin and Albert Calmette | |||
| - | 50c | multi | Jonas Salk | |||
| - | 60c | multi | John Enders |
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