NOS [New Old Stock] Original 1971 Buick Dealer Chassis Service Manual.  It is new in the original box, I opened it to take photos. This Shop Manual has information, specifications, illustrations, diagrams and procedures for the full line of 71 Buicks. These are what the Dealership used to service and repair your vehicle. Very informative and useful tool that is hard to find because it was a Dealer only item. Excellent condition but the the cover has minor damage as seen in photo.