> Sometimes, the scribes would keep the original and give the copy back because they would be hard to distinguish. Copying books back when you had to do everyt

> Sometimes, the scribes would keep the original and give the copy back because they would be hard to distinguish. Copying books back when you had to do everything by hand and doing so fast enough that you could return the book in time? I would expect less "hard to distinguish" and more "barely legible".