Years ago I recall reading about an informal daily "race" between New York Central's 20th Century Limited and Pensy's Broadway Limited, when departing Chicago's Central(?) Station. This took place in the late 1930s or perhaps the post-WW2 1940s. This seems like a pretty dramatic event. Does anyone know if there are any photos of this event? Have any of the railroad artists depicted it? Any other info. would be welcome.