By Lynn Cline I The New Mexicansaddle blanketsoriginated thrift.;a century ago as protective covers to shield hdi^ fioth thfe stiff leather of saddles, but they’ve come to serve as rugslt; tablecloths, pillows, curtains and artistic wall hangings.“They started life as completely utilitarian objects, said Lane Coulter, the editor of Navajo Saddle Blankets: Textiles to Ride in the American West (Museum of New Mexico Press), presented as the first and only book to explore the history and creation of the blankets.“Now they’re looked at as a body of work, with graphics and sizes and uses. They are often the size of paintings and readily displayed, so it’s a contemporary thing for people to hang them on the walls.”For the most part, Navajo saddje blankets have been eclipsed by the more famous Navajo rugs. But the Museum of Indian Arts and Culture houses a permanent collection of these colorful, patterned textiles — woven using twills, tufted angoras, double weaves and two-faced designs.Navajo Saddle Blanket''s seven chapters are written by authorities on the subject, including Joyce Begay-Foss, dnector of education for the Museum of Indian Arts and Culture; anthropologist Susan Brown McCreevy;continued on Page 20