Large round hollow domed sterling silver concho earrings are signed Sterling and what looks like an R with an arrow, and feature Southwestern stamp work.  They have a diameter of 1 1/8 inches and they weigh 10.6 grams.  They are in great vintage condition and they come with silicone backs. Southwestern Silver Concho Earrings, Screw Back Earrings, Gold Filled Jewelry, Earings Piercings, Link Bracelets, Jewelry Earrings Studs, Clip On Earrings, Native American, Bangle Bracelets