Thunderbird & Snake Turquoise Sterling Vintage Buckle Old Pawn JK 210

Rare Harvey Era silver belt buckle. This has a copper Thunderbird with three big Turquoise stones. And in the other corner a silver snake all coiled up. Never seen another.
Best old patina.
Tested Sterling Unmarked like many of the oldies. Weighs 65 grams.
Measures 3 1/2" x 2 1/2".
Inventory # JK 210