Doesn't the thread-bound book have a copyright page?

Thread-bound books also have copyright pages, and modern newly printed thread-bound books all have copyright pages. In ancient times, among all books published regularly, thread-bound books also had copyright pages. However, with the development of time, most of the original works were damaged, and most of them were later reprinted, and the copyright pages naturally disappeared. Even if the original work can be preserved to this day, the copyright page is lost. If we can find an ancient thread-bound book with a complete copyright page, it will be a masterpiece in ancient books.