Quote from the Northern New England Color Guide to Freight and Passenger Equipment "MEC 333 Maine Central's newest business car was #333 (originally NITUNA) photographed at Rigby Yard in Portland in October 1967. Measuring 83 feet 7 3/4 inches long over couplers, this 1924 built all steel car had private rooms for four officials plus a dining and kitchen on the vestibule end and a lounge section at the observation end. Painted dark green with black roof, the car also had a yellow stripe at the bottom of the carbody sides."
Quote from Maine Central in Color, Volume 2 "The 333 was built for private use by Pullman in 1924. Originally named "Nituna" and then "Lone Tree", it came to tne MEC in 1939.