The Triple-Ridge Insulator Club patch is a three-color, square patch with a purple border surrounding a light blue background.  In the center of the patch is a green CD 288 with three ridges.  Above the insulator in purple are the words "TRIPLE-RIDGE INSULATOR CLUB."  Between these words and the insulators is a purple outline of mountains.  Beneath the insulator are the words "EASTERN COLORADO REGION."  The patch is 2-5/8 inches square

History:

CD 288 "Mershon" insulators were used extensively in the Colorado area.