This is a selection of 4 vintage WW2 World War 2 Era Mechanic Car & Truck Repair soft cover Manuals Published by Automotive Digest Cincinnati Ohio. War Edition Tune-Up Manual Combined with Service Data Book is Nineteenth Edition Copyright 1942 by Automotive Digest Publishing Corp. It measures approx. 8 ¼ by 11 ¼ inches with 136 pages. Some of the cars or automobiles in it include Hudson, Crosley, Packard, DeSoto, Nash, Studebaker, Willys and more. Automobile Service Data Book 1941 Tune-Up Procedure has 95 pages and has La Salle, Hupmobile and more. Tune-Up Manual is a 1940 Supplement Tune-Up Data on 1940 Passenger Cars and Trucks. It has 40 pages. Diesel Service Manual has 28 pages. It shows Hercules, Waukesha and Cummins Diesel Engines. These four books are used with wear, some page discoloration from age and spine wear in good to very good condition. On a search I found few of the War Edition and none of the other books that I purchased together.