Bookbinding with newsprint?

We were taking off  the worn spine from an old book last week and found newsprint and an electronic strip. An interesting time capsule. No one had ever seen newsprint-looks like an industry rag-used in this way. Have you?

hidden spine reinforcement

Buy, it’s good for you!

from The New York Times Magazine, November 11, 2012, p.15

Of course, we are going to buy NEW hardbound books and donate them to the library when we are through. And feel good twice!

from The One-Page Magazine