Thanks for posting! Odd thing in the pic seems to be that the hearse-like rear end doesn't carry the Chevy logo as in this one:
Some time in 1956 #1001 seems to have been put in between Cleveland & Chicago in the NYC livery:
Quote: "The cars each rode on two axles with an air suspension system, which was intended to give a smooth ride, but had the opposite effect."
"The mystery deepens as the plot thickens..."