Book excerpt: The classic collectibles! From the highly collectible singles built in the 1900s to the Flathead, Knucklehead, and Panhead powered machines, Hatfield winds his way through Harley-Davidson history up to 1965. Packed with information on where and how to find these machines, how to identify rare and unusual models and how to determine the value of the classics. This book contains a delightful mix of original and archival photographs of each model while it rates the collectibility of the model's value with the traditional Buyer's Guide 5 star rating system.