Early Navajo Cuff Bracelet with Natural Turquoise in Unusual Shape

Early Navajo sterling silver cuff bracelet set with a natural turquoise stone that is in an unusual shape. The is decorated with lines of hand dropped raindrops. 

It is hallmarked inside with a double diamond and an arrow. 

Interior measures 5 1/4" plus the opening of 1 1/4". Somewhat adjustable. 1 1/4" wide. Weight; 62 grams.