VTG. Signed buying HOPI Sterling Silver Overlay Pendant

Product Name: VTG. Signed buying HOPI Sterling Silver Overlay Pendant
Authenticated Vintage HOPI Native American Sterling Silver SIGNED Overlay Coral Turtle Pendant. *Price is firm now. buying There are 3 VTG stamps in the back. I found 2 of 3 and added the pics. It looks like someone out a drop of testing liquid straight on the piece. Wow! It has been tested the correct way now. *Sterling Silver! Please slide photos to see more description including measurements and Stamps. This is a Genuine piece from the HOPI Native Americans. They made pieces in 1939. Then stopped bc of war. They started again in 1947 and continued until 1979. There are still Native Americans creating some of the most amazing Sterling Silver pieces today. The necklace comes with the Pendant. I don't believe it is Sterling Silver. Hallmarked and Stamped 3X.