Gallup Inter-Tribal Indian Ceremonial 47th Annual Poster, August 8-9-10-11, 1968. Gallup, New Mexico. Artist: Louie Ewing, Am., (1908-1983), Adapted from Indian Water Color Painting By YEL-HA-YAN, Navajo. Visit Navajo Land This Year "1868 - NAVAJO CENTENNIAL - 1968". 22" high x 14" wide. Poster on stiff cardboard. Water Marked.