"In the center of the Emerald City of Oz, the capital city of Ozma's dominions, is a vast and beautiful garden, surrounded by a wall inlaid with shining emeralds, and in the center of this garden stands Ozma's Royal Palace, the most splendid building ever constructed.
From a hundred towers and domes floated the banners of Oz, which included the Ozmies, the Munchkins, the Gillikins, the Winkies and the Quadlings.
The banner of the Munchkins is blue, that of the Winkies yellow; the Gillikin banner is purple, and the Quadling's banner is red.
The colors of the Emerald City are of course green. Ozma's own banner has a green center, and is divided into four quarters.
These quarters are colored blue, purple, yellow and red, indicating that she rules over all the countries of the Land of Oz...."