Marx O Gauge lithographed tinplate trains and two plastic tenders.  Nickel Plate Road, Canadian Pacific, Pennsylvania, New York Central tenders.  Rock Island 552 C.R.I.&P. gongola.  Two 553 Middle States Santa Fe tank cars.  Baltimore and Ohio 555 B&O 384299 dark blue box car.  245 Bogota Pullman coach, red.  Bogota Pullman coach, red.  2071 New York Central coach, aluminum.  New York Central 5024 Railway Express Agency U.S. Mail Railway Post Office and NYC 5026 REA U.S. Mail R.P.O., both in turquoise.  Red flatcar or chassis.  New York Central and Southern Pacific Lines plastic tenders. Trains look C6-7.