For sale is a copy of Wiring Diagrams or Popular Makes of Cars by the American Automobile Digest.  The book is full of diagrams from the 1920s.  I am unsure if all of the page are present since the pages are out of order and some pages are loose.  There looks to be over 200 pages of diagrams.  Please see photos and feel free to ask any questions.  This book comes from a smoke free home.