You are buying a vintage Sturdy Catalog No. M-72A for motor mounts, valve seals, battery bolts & hold downs, & muffler clamps and hangers. This book includes an interchange, a numerical listing and illustrations to let you know what you are working with.  This is an old book and it has been weathered, but it is still in great condition for reading.  The knowledge in this book is priceless!!  You can cross reference parts if you have a bulk load of classic car parts, and you can also see what part number you may need if you are simply restoring an old vehicle.  I have hundreds of other vintage books like this that I am willing to sell all together in a bulk load as well, but I do not have the time to go through each of them to find exactly what people are looking for.  I am willing to negotiate a price and give some specifics about the books otherwise.  There will be no refunds for this book, so please review the pictures and make sure this is what you are interested in for your classic car collectibles.  If you have any further questions, please do not hesitate to ask.  Thank you so much and good luck in all of your endeavors!!