This comb bound book has clear 10 5 mil cover sheets front and back., Often I have to replace combs on books like these, but this is an exception. The black comb on this book looks still to be new. 

This literary manual goes a little too deep into the topic for me, so please check out my pics for more information.

The last 3 pics shown are pages inserted into the text block back whenever sold. 

Please email with any questions.