If you haven't join this free online course, take advantage and see the images of the oldest printed texts and books.
https://www.futurelearn.com/courses/japanese-rare-books-culture/
On lesson III, Professor Ichinohe will guide us through the early
history of printing and bookmaking (700-1200 C.E.). Topics covered
include:
The oldest printed texts
The spread of printed works
The first printed books
I thought my readers would enjoy this course!