A part of the Sankō Gotei emaki 三皇五帝絵卷, acquired by Harvard Yenching Library from Arnulf Petzold (Bruno’s son) in 1951.
For the full image: http://ids.lib.harvard.edu/ids/view/25705382?buttons=y
The image is also included in Petzold collection of Japanese scrolls digitization project. For the full list of items in the project, please see