|
|
Short desc: RIKEN 100th anniversary
Issuer: Japan Date: 4/26/2017 Occasion: unset Consists of 5 stamps: (See stamps as list) 82y d=RIKEN products at the beginning 82y d=Supercomputer Kyo 82y d=113th element Nihonium Nh 82y d=Micrograph of plant & animal tissues 82y d=A new kind of cherry blossoms developed with heavy ion beam |