This is Volume 11 of a late, printed version of the Taikoki, the biography of Toyotomi Hideyoshi. I would really appreciate some help with the artist who did the cover illustration. And thank you to the organizers and participants for updating the website and continuing their generous expert advice!
There must be a colophon or a title page in the book that gives information about author, artist, etc. It may also be that some illustrations bear the signature or the artist. If you post such pages, one might be able to find out more about the book.