Vintage No.8 Turquoise Navajo Pin in Sterling Silver

Old 1930s Navajo pin that is set with No. 8 Mine spider web nodule turquoise. This stone is cracky and was not stabilized or filled originally. Somewhere along the line someone coated it in an effort to stabilize it, but it is fine. It's a great specimen that came from a mine that is closed forever.  It is not going to break apart. It is set in sterling silver with rope and a scalloped and stampd frame. Measures 1 5/8" by 1 1/4". Pin has a locking clasp. weight: 15.4 grams.