This vintage catalog is a must-have for anyone interested in heavy machinery. It features detailed information on the Cat Tractor No. 7A Bulldozer, including its angling blade and hydraulic parts. The catalog provides a comprehensive list of compatible equipment types, model years, and countries of manufacture, making it an invaluable resource for collectors and enthusiasts alike. With information on the brand, model, and country of origin, this catalog is sure to provide valuable insights into the world of heavy machinery.