Up for bids is an original black and white photographic negative of Southern Railway EMD E-8 diesel unit No. 6907 diesel unit No. 6907.  The view is a left 3/4 shot of the unit taken at Potomac Yard, Alexandria, VA, on August 2, 1978.  The identity of the photographer is unknown.  The negative measures approximately 2 1/4 x 2 3/4 inches, is well composed, properly exposed, and in sharp focus.  Excellent roster shot that should make fine prints.