Vintage Practical Arc Welding: A Text Book by W. J. Chaffee, published by Hobart Trade School, Inc., Troy, Ohio.

Fifth Printing. An old-school technical training manual covering practical arc welding methods and techniques. Illustrated throughout with instructional material for welders and trade-school students.

Hardcover shows age and use with surface wear, scuffs and some discoloration. Pages show normal age-related toning and wear. 

Great vintage reference for welding, metalworking and industrial trade collectors as well as anyone interested in the history of welding education and Hobart equipment.

Thanks for looking.