I was just reading Clem's York Primer, and noticed that Bruce Greenberg wants to photograph unusual prewar Lionel O gauge. This got me thinking about my Grandpa's 654 Tank car. Grandpa got this new for Christmas, and only the engine ever went away for repairs (got a wheel replaced in 1940, Great-Grandpa liked to crash it), so I know it's original. Anyway, it's the trim. The handrail, ladder (only one, the other is missing, probably from one of Great-Grandpa's crashes), and domes are brass, but the handrail holds and the journals are nickel. Actually, the whole set is nickel journals and brass trim. Would this be considered unusual? I'm not asking if it's photo-worthy unusual (though if you think I should take it with me to York, let me know), but is this something that Lionel did to use the parts up, or is this a truly odd set?
Photos of the 654: