This print is from a series of twenty-four chuban-sized designs by Koryusai, each featuring the character Mane'emon, a miniature person who in this particular design is wearing a black head covering, while observing the small female figure in the cage.

For another impression of the same design in the collections of the Museum of Fine Arts, Boston, go to:
http://www.mfa.org/collections/object/on-the-street-in-the-yoshiwara-no-6-from-the-series-poems-of-the-male-and-female-maneemon-haikai-meoto-maneemon-202004

For another design from the same series in the collection of Harvard Art Museums/Arthur M. Sackler Museum, go to:
http://www.harvardartmuseums.org/art/206329