1930s Thunderbird Whirling Log Sterling Cuff 7" wrist JB 295

Quite nice and unusual punchmark on the front of this vintage Native cuff with a good Thunderbird with a whirling log symbol on his tummy. On each side is a punch with a big long snake. Additional whirling log symbols on each side.
Tested silver. Not marked as most of the oldies are not.
The bracelet measures 5 1/2" inside with a 1 1/2" gap, and weighs 11 grams. C 1930s
Inventory #JB 295