Set of three. Attached, but can be separated by tearing along a perforated line. First reads "Acadia National Park, Maine." Shows scene from park. Second reads "Redwood National Park, California." Shows redwood trees. Third reads "Grand Canyon National Park, Arizona." Shows Grand Canyon. Sent as a campaign to save our National Parks. Commissioned by the National Resources Defense Council. Back of each card reads "Our national parks/ are not for sale!" Color: BL,TN,WH
