Hmmm, half hour passed. Apparently not many here that did, as those who must have read this haven't even known how to ask what you meant.
Well, I did; and I have the iconic UP F3 ABA engine, in all its glory, each unit with its very own shade of armour orange, none correct, to prove it. The situation was not helped by rumors that favored big collectors had been given the opportunity to assemble matching sets by getting first crack at pawing through the sets ahead of time.
Years later, I got a 2d B unit second-hand. The color was beautiful, near-new, and correct. So it matched none of my 3 original units, which suffered variously from too much yellow or too much fade. But it had its own defect-- a warped plastic frame. But the former owner had made a valiant attempt to re-rivet it to the metal subframe, which alas was too flimsy to measure up to the job.
I think that there was one good thing to come out of this. The year before (1983),
Smithsonian magazine had published a picture of a postwar Santa Fe warbonnet F3 as its cover. This caused all the movers and shakers in Washington to become instant speculators in Lionel items, driving prices up decidedly increased rate. The Union Pacific fiasco of the following year must have put a small amount of reason back in the market. I myself lost my enthusiasm for F3's sight unseen. --Frank