Stamps, Richard Henderson, Chemistry design

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GuineaBissau

postage

2017, Oct 24 Nobel Prize Winners 2017 issue unwmk p. 13.5
- 640FCFA multi Richard Henderson, Chemistry

Maldive Islands


2018, Mar 15 Nobel Prize Winners 2017 issue (no perf info)
- 60r multi Richard Henderson, Chemistry

Niger


2017, Dec 28 Nobel Prize Winners of 2017 issue
- 800fr multi Richard Henderson, Chemistry

1 to 3 of 3