Farm Tractor Milestones Author:Randy Leffingwell Beginning with a turn-of-the-century Case Steamer and ending with the 1994 Caterpillar Challenger, this photographic history examines the 35 farm tractors that most influenced the industry. All-new modern colour images of the tractors chosen are accompanied by b/w archival imagery and stories tracing the historical significance and technical det... more »ails of each.« less