Japan stamp sheet: flags
designed by S. Watanabe
Canada postage stamp: constitution
c. 1982, in honor of the Constitution Act. Please leave a comment if you know the designer of this postage stamp. A guess is that the stamp was designed by Friedrich Peter, but I’m not certain.
Ryukyu Islands stamp: Japan and U.S.A. flags
in honor of United States-Japan Agreement to return Ryukyu Islands to Japan designed by S. Tamanaha