1938 Broadway Limited (most likely the maiden run of the "Fleet" cars):
PRR M70 RPO HW (heavyweight), PRR B70 baggage HW, two Pullman City 18-roomette LW, Pullman Harbor 2-double-bedroom bar-lounge car LW, PRR D70 bedroom-diner HW, Pullman Imperial 4-compartment, 4-double bedroom, 2-drawing-room car LW, Pullman County 13-double-bedroom car LW, Pullman View 2-master-room,1-double-bedroom, buffet-lounge observation,LW.
This from the book "Pennsy Streamliners The Blue Ribbon Fleet".