A Marion Type 21 shovel loads dump trucks for the Chester
Vulcanite Pavement Co. of Rochester, N.Y., in 1926. The shovel was powered by
electricity furnished by an on-board gas generator. Photo courtesy of the
Historical Construction Equipment Association, a nonprofit organization that is
preserving the history of construction, surface mining and dredging
information. For further information, contact the HCEA at 16623 Liberty Hi
Road, Bowling Green, OH 43402, or call 419/352-5616, Internet address:
www.hcea.net.