Now showing: China, Peoples Rep. - Postage stamps - 1992 - Scientists - 4 stamps.
20. November WM: None Perforation: 12
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![[Scientists, type CNJ]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/CNJ-s.jpg)
![[Scientists, type CNK]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/CNK-s.jpg)
![[Scientists, type CNL]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/CNL-s.jpg)
![[Scientists, type CNM]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/CNM-s.jpg)
