Katsushika Hokusai 1760-1849. The Sacred Spring at Jogaku (Jogaku reisen), from the series Eight Views of the Ryukyu Islands (Ryukyu hakkei), Woodblock print, ca. 1822-1842. Edo period (1615-1868). Polychrome woodblock print; ink and color on paper, 25.6 cm. Inv. Nr. JP1430 New York, Metropolitan Museum of Art.