Happy Improvisations on a Riverboat Journey, Edo period (1615?1868), ca. 1767, Japan, Handscroll; woodblock print; ink on paper, 11 3/16 x 39 ft. 7/16 in. (28.4 x 1189.9 cm), Prints, Ito Jakuchu (Japanese, 1716?1800), This scroll records a journey in