Recha Freier (1892 – 1984) founded the Youth Aliyah organization in 1933. The organization saved the lives of 7,000 Jewish children by helping them to leave Germany for Palestine before and during the Holocaust. She was also a poet, musician, teacher and social activist.
The stamp was issued in 2018 (see here a better picture). The stamps of the Elephant Holon and the Lioness Jaffa were also issued in August 2018).