The 40th Anniversary of the Death of Dr. D. S. Kotnis 1982
Now showing: China, Peoples Rep. - Postage stamps - 1982 - The 40th Anniversary of the Death of Dr. D. S. Kotnis - 2 stamps.
Now showing: China, Peoples Rep. - Postage stamps - 1982 - The 40th Anniversary of the Death of Dr. D. S. Kotnis - 2 stamps.
![[The 40th Anniversary of the Death of Dr. D. S. Kotnis, type BTH]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/BTH-s.jpg)
![[The 40th Anniversary of the Death of Dr. D. S. Kotnis, type BTI]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/BTI-s.jpg)
