A large Navajo regional rug, first quarter of the

A large Navajo regional rug, first quarter of the 20th century. Ganado Trading Post, woven of native handspun wool with natural and aniline dye with an overall diamond grid pattern in red, white, gray, brown and black all enclosed within a negative ivory and black geometric border with banded ends; 123 ½ x 83 ¾ inches