In 1930 they also began a concept called the “Crayola Color Wheel” that offered up Crayola colors based on the color wheel concept of distinguishing colors developed by Munsell and then adapted for Crayola’s use. The No. 16 assortment was offered in two versions. You could get the regular assortment with Black, Brown, Bt. Sienna, Cobalt Blue, Eng. Vermilion, Gold Ochre, Light Yellow, Lt. Green, Madder Lake, Medium Green, Olive Green, Orange, Prussian Blue, Rose Pink, Violet, White or you could get the color wheel assortment offering BLACK, BLUE, BLUE GREEN, BLUE VIOLET, BROWN, GREEN, NEUTRAL GRAY, ORANGE, RED, RED ORANGE, RED VIOLET, VIOLET, WHITE, YELLOW, YELLOW GREEN, YELLOW ORANGE. These new colors were offered up in their new wrapper type that appeared in assortments around 1928.