B&W photos of Chesapeake & Potomac Phone Co. Safety Day - (a) D. Dwyer and H. Hanon inspect lineman, (b) F. Donaldson and Wayne Wisniewski attach firing blocks to a bumper for brake test, (c) State Trooper Himmelman and Laurel Police Corporal Martin confer on driver tests, (d to l) more photos of the event, (m to n) news clippings of event.