There has been a lot of speculation as to the unique color scheme of the Schooley's Mountain apparatus. But perhaps now the mystery is solved. See the letter below from former Great Eastern Salesman and President of New Jersey Fire Equipment George Fosdick. The advertisement below also implies the "two tone cab" was developed as a distinguishing marketing tactic.
See the current Lambs Terrace trucks here (not quite the same now).
We like it. That's why we've kept it all these years on the larger trucks. Hope you do too!
the apparatus page