The Ronin Gallery in NY has published a very useful basic introduction to evaluating Japanese prints on their website. It explains, and shows with examples why some prints are more valuable than others, pointing out how differences in earlier and later impressions of prints and condition issues (such as fading, backing, trimming, and centerfolds) affect value.
Read the article HERE
Hiroshige, Plum Garden at Kameido. Image: Ronin Gallery.
Good color preservation Faded Impression