Jim Harter 
Early Farm Tractors [PDF ebook] 

Providing an interesting glimpse into the steam traction engines and internal combustion tractors that revolutionized the world of farming, this collection focuses on American tractors from the late 1850s to the beginning of the Great Depression. With farm journal advertisements-dating from 1909 through 1929-this account considers how something as ordinary and utilitarian as a tractor seems to have inherent standards of good design, correct proportion, and beauty. Intended for tractor enthusiasts, historians, artists, illustrators, students of industrial design, and graphic art lovers, this fascinating book recounts an important piece of history.