Famous Chinese Scientists 2018 issue of China, PRC
|
Short desc: Famous Chinese Scientists 2018
Issuer: China, PRC Date: 5/26/2018 Occasion: unset Consists of 4 stamps: (See stamps as list) 1.20y d=Li Shizhen 1.20y d=Compendium of Materia Medica by Li Shizhen 1.20y d=Song Yingxing 1.20y d=The Exploitation of the Works of Nature by Song Yingxing All are perf=Syncopated 13.5 Record of changes |
|
