1 Age: nh ngha, Cch S Dng v Bi Tp Ting Anh Chi Tit Age Icon PNGs for Free Download Infant Age Minnie Mouse Jack in the Box When should I get screened for cancer? Coverage. The Age of Enterprise is an interpretation of the history of the United States based upon the existing monographic material in American history, economics, and related social subjects. Published 1961, First Edition. Binding of book is intact. Some creasing, foxing, and fraying on covers of book. Some foxing on edges of book. Streak of marker on bottom edge and waterstain on fore edge of book. Creasing and frayng of spine. Some foxing and annotations in pencil on insides of covers. Very little foxing on certain pages, otherwise in good condition.