The product is a manual and parts catalog for the Allis-Chalmers "WD" Spring Tooth Field Cultivator, specifically model TM-16A. It is designed for use with Allis Chalmers equipment and provides instructions and diagrams for maintenance, operation, and troubleshooting. This vintage manual is a valuable resource for owners and enthusiasts of Allis-Chalmers heavy equipment, offering insights into the operation and care of these machines from over 75 years ago. Includes unused order form, see photos.