vintage sterling Navajo lizard pendant brooch

This is a marvelous vintage/antique, 925 sterling silver, handmade pendant pin brooch. It depicts a beautiful lizard with 5 different gemstones such as Turquoise, Lapiz lazuli, Malachite ( not sure about the other 2 stones) on top. Signed "sterling AA" on the back (2 places). "AA" possibly is stand for "Art Acoya". Beautiful vintage condition. No flaws. Some natural patina on it. You can add a chain and use as a pendant or as a brooch. Great gift idea for your loved one or yourself.