The 911 and 912 Porsche, A Restorer’s Guide to Authenticity II takes a part-by-part, year-by-year approach to what an owner or prospective buyer should look for when evaluating a 911 or 912 Porsche. For each year, from 1965 through 1973, the author examines every change, documented or not, of each model and now including major mechanical components. Included are the most accurate and comprehensive chassis number and color/upholstery listings anywhere.