Keystone Equipment Corporation Philadelphia, Pennsylvania     Little is known about Keystone Equipment of Philadelphia, Pennsylvania. Their rotary refuse collector, which appears to have been introduced in the early 1940's, is very similar to the American LaFrance model. It is possible that they bought the design rights for this body from ALF. 1940 Keystone advertisement Circa 1940 Keystone in service with The Rochester (NY) Department of Public Works 10/11/15 © 2015 All Rights Reserved Logos shown are the trademarks of respective manufacturers Photos from factory brochures/trade advertisements except as noted