"DONCO" was shorthand for Donovan Coffee, parent company of the more established RED DIAMOND COFFEE. For years, the intertwined letters "D. C. Co." appeared inside the red diamond on the label (for Donovan Coffee Company). Today, its "R. D. C." - a simple abbreviation for Red Diamond Coffee.
As for "Donco", obviously that name didn't catch on.
The freeways are comin' ... the freeways are comin' ...
03/30/2008 -- 1156 PM EDT