On the list of U.S. producers from your 1970s was in Southern California, and 1 was in Illinois. The German firm mainly equipped to auto brands and new car or truck sellers. In the event the auto suppliers stopped purchasing cocomats during the late 1970s, they discontinued generating cocomats. From https://www.grimefordmill.co.uk/blog/bright-or-neutral-how-coco-matting-colours-affect-the-mood-of-your-rooms/