The westbound California Zephyr out of Chicago on Tuesday has two private cars bringing up the markers. They are the Berlin and the dome car Northern Sky. I caught the train running about half an hour late and about half an hour after sunset.
These two varnishes are returning east on Amtrak #6(14). I caught it just east of Ottumwa about to be stuck following the yellows of an eastbound freight train. Which I find weird, as I can't remember #6 getting stuck behind a freight leaving Ottumwa before. Usually they're good at geting #6 past eastbounds around here, if need be.