My 90 year old mother, along with her father before her, we professional bookbinders.
They specialized in big, old family bibles and probably rebound thousands, maybe 10s of thousands over their careers.
Many older bibles look like autograph books! Many names signed on margins or verses circled or marked with dates and comments such as “Great meeting you...and always remember God’s word in John 3:16, sincerely Josia Franklin.” types of comments.
Not at all unusual, in fact, very common 1850’s thru 1960’s.
I’m trying to find a good place to have a Bible re-bound. My parents gave it to me on my 20th birthday when I was in Seminary. It’s falling apart. I have others, but this one is special.