In Bill and Jill's auction #160 an orange "pumpkin" glazed Cooke insulator was originally listed as yellow. I contacted Bill and submitted this photo showing the color variations I've seen in the Cooke and Wheatstone sleeve insulators. As seen, there is a yellow that is distinctly different from the orange glaze that was listed in the #160 auction. I have also seen lighter versions of the gray/tan piece that look more like sand.