Hiroshi Iwashita was born in 1917 in Tokyo. He's also known as Iwashita Yo. He graduated from the Tama College of Fine Arts and exhibited with Kokugakai. He's known as a stencil artist, but also made moku-hanga rich in textile patterns, folk art quality, and humor. See See Helen Merritt and Nanako Yamada. "Guide to Modern Japanese Woodblock Prints: 1990-1975". University of Hawaii Press, Honolulu (1992). p 49.