Stamps of Laos, 100th Anniversary of Identification of Leprosy Bacillus by Hansen issue

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postage

1973, Jun 28 100th Anniversary of Identification of Leprosy Bacillus by Hansen issue unwmk (no perf info)
Colnect-330-714-Gerhard-Hansen.jpgColnect-330-715-Gerhard-Hansen.jpg
- 40k multi Dr. Gerhard Hansen
- 80k multi Dr. Gerhard Hansen

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