Here's a shot of a couple of old Roundhouse cars I did several years back using some very old (70's) Walthers's decals. The cars aren't a match for the 2000 and 2100 series, and the decals wouldn't pass muster for rivet counters in this day and age, but this is generally what they looked like in their later years. Take a look at the top photo on page 26 of the Crist/Krause, Volume II; I'm fairly certain that the first car behind the camelback is one of the 2100's.
(All indications are that the L&HR herald didn't come into existence until the RS-3's were bought, and it was probably largely designed by Alco; the only cars it appeared on were the 10 class cabooses, and at least some of the remaining 1900 series ore cars; it was also applied to the flanger a year or so before CR- at the whim of the car-knocker who painted it.)
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