Yes that is the one but they have "The Chessie" on the side of it now and moonlight some below that
PV "Moonlight Dome" is one of three sleeper-dome-lounge ordered cars from the Budd Co. by Chesapeake & Ohio RR, for their planned luxury train "The Chessie."
The Chessie train never went into full opertaion, and the few "Chessie " cars not retained by the C&O were sold to other railroads.
Moonlight Dome and her sister cars ended up first with C&O affiliate Baltimore & Ohio, then were leased to Atlantic Coast Line (and successor Seaboard Cost Line) for use in Florida service.
These particular cars have a dome glass arrangement different from other Budd domes in that the height of the dome glass is reduced to allow for tighter Eastern U.S. clearances.