Welcome! to Cal Poly Pomona's collection of antique Caterpillar Tractor photographs. The collection was donated by Mr. Paul Hofer in June of 2001. In addition to the photographs below you can also take a look at transcrips of an interview Mr. Hofer and our Special Collection's librarian Danette Cook Adamson conducted discussing the photographs by clicking here.
In addition, here's a cover letter relevant to the history of these great photographs.