Large Vintage Thunderbird Sterling & Turquoise Necklace JN 853

Great example of a unusualy large size Thunderbird necklace for this time period. Good green turquoise and nice punchwork decoration.
Tested Sterling and unmarked like many of the oldies.
The necklace weighs 57 grams and the chain measures 20" long. The pendent is 4 1/2" wide.
Inventory #JN 853