an image from the US government EPA "Sunwise" program. I converted it from PDF format, and removed all the "sunwise" logos. the source link is here - http://www.epa.gov/sunwise/doc/mission_story.pdf
The Wood of Edo Period from Gay Quarters at Shin-Yoshiwara | "Celebrated Places of Edo"
Japanese, Edo period | Woodblock print (nishiki-e)
Artist Utagawa Kuniyoshi, Japanese, 1797–1861