Deluxe, there is a picture of each side of the Nocturne in the book PRR Color Guide to Freight and Passenger Equipment Vol. 3. The caption says the car had 16 duplex single rooms.
"Nocturne was originally Adair, a plan 2951 baggage-buffet club smoking car with a barber shop built in July 1923 for assignment to the New York Central. During May 1933, Adair was rebuilt as plan 4029 with 16 duplex single rooms, renamed Nocturne and put in PRR assignment."
I don't know what trains they ran in. The pictures were taken in June 1947 and the car is painted Tuscan Red with Pullman on the sides. the side with the staggered windows has the Pullman name between the 2 window bands.