Old Navajo Turquoise Fluted Button Earrings in Sterling Silver

Old Navajo sterling silver earrings that are set with turquoise. Each stone is surrounded with tiny fluted buttons. They have pierced wires that form a loop to hang drops. These are chain and each has a tumbled turquoise bead hanging from it. One bead is much larger than the other, but they appear to be from the same mine and original. The smaller one is not broken. 

They are about 2" long. No hallmarks. Acid tested. Weight: 8.67 grams. Some wear and tarnish.