I'm trying to get information on the UBB unit coal train that is
pictured in Gerard Bernet's book on Conrail's SD40 and SD40-2
locomotives (pictured on page 21). I'm particularly interested in
photo sources for the BSCX hoppers (for modeling purposes),
information on when these hoppers were first used on this unit train,
and information on when the unit train was first operated by Conrail.
Any assistance is greatly appreciated.

Sam Reynolds