SAVE $200: This concha belt was made by Jimmie Patterson, a Navajo who has been active since 1970. The concha are square and rectangular each with a Blue Gem mine turquoise. There are straight lines from the stone to the edges. 1/2" wide and 43" long with 7 holes. Weighs 4.5 ounces. Marked P and Sterling. Excellent vintage condition, 1970s.