Keiko Minami / 南桂子, b. 1911, d. 2004Poppies with Butterfly and Self-PortraitJapan (undated)Wate

Keiko Minami / 南桂子, b. 1911, d. 2004
Poppies with Butterfly and Self-Portrait
Japan (undated)
Watercolour and blue pastel
National Gallery of Art, Washington DC
[Source]

Wikipediasays:

Keiko Minami was a Japanese artist, aquatint engraver, and poet… In the late 1950s, Minami’s works were reproduced and sold as greeting cards by both the Museum of Modern Art and UNICEF. In 1959 she was named as an official artist of the United Nations.