Signed Navajo Sterling Silver Turquoise Ring

Vintage sterling silver Native American handmade ring is signed MA and has tested as sterling silver.  It measures between a ring size 7 3/4 - 8, and the face of the ring measures 1 1/4 inches long.  It weighs 13.2 grams.  It shows wear upon close inspection and I angled the ring to show the surface clearly.  The scratches are not nearly as noticeable with regular wearing.  Please be aware that colors of stones may vary based on lighting conditions and calibration of monitors.