I don't know all the answers to this question, but I do know that there are a variety of stitching patterns and different binderies had patterns that they tended to use. I've learned four different stitching patterns and I know there are many more.
Also, the materials were partly based on what was available in a particular region (e.g., the cords are sometimes made from different materials and, of course, the boards are different woods, and the leathers from different animals).
The thickness of the cord varied also, and the spacing on the spine.
Also, the materials were partly based on what was available in a particular region (e.g., the cords are sometimes made from different materials and, of course, the boards are different woods, and the leathers from different animals).
The thickness of the cord varied also, and the spacing on the spine.