Dino Garcia Tufa Cast Maze Design Vintage Cuff Sterling fits 6 1/2" wrist JB 964

Incredibly complex detailed tufa casting to make this maze design, 6 mazes across the whole cuff. Casting in tufa stone leaves slight texture to the whole surface, very distinctive.
The inside is so interesting. It has a sun and a raincloud and a corn plant. Then it has the letters DINO for Dino Garcia. Tested Sterling.
The bracelet measures 5 1/4" inside with a 1 1/4" gap, and weighs 53 grams. It is 1" wide.
C 1980s
Inventory #JB 964