Vintage Navajo Sterling Silver Pendant and Chain Turquoise Necklace

Vintage signed Navajo sterling silver pendant and chain necklace from the 1970s. It is hallmarked DRK on the back near the bail. The turquoise is a true turquoise color with a light spot in the center. It measures 1 1/2" long by 3/4" wide. The chain is Italian, a replacement and 17" long. Total weight: 9.2 grams. Silver is tarnished.