Fig. 1
reproduced with permission from the Portland Art Museum; full citations provided in the experimental section
a Renshi, from the series Fūryū goshiki-zumi (A Stylish Version of Five Colors of Ink), ca. 1768, color woodblock print with embossing on paper; chūban nishiki-e, image: 11 5/16 in × 8 5/16 in; sheet 11 3/8 in × 8 9/16 in, The Mary Andrews Ladd Collection. Portland Art Museum, Portland, Oregon, 32.71. b (DETAIL) Images of the area indicated by the yellow box in a. (left-to-right) before, immediately after, and 20 min after micro-sampling. In the UV light images, a wet spot is visible near the center of the image, but after 20 min had dried, leaving the print visibly unchanged. Images