Copy of a page from a catalog issued by Edwards Rilway Motor Car Co., showing a top view of a motor car power plant used in most of rail cars built by them. The truck was invented and patented by Mr. H. P. Edwards, owner of the company. 28-02-09. Printed Material - Trains. 96.20.1. Donor: Edwards, W. J. Date: June 1996. Location: Book #3.