Stunning Vintage Sterling? Silver Enamel Modernist Abstract Clamper Bracelet

Bracelet is not signed but is beautifully handcrafted. I am not sure if base metal is sterling silver or a silver alloy but bracelet is heavy and solid. It is in excellent condition. It measures 1 1/16" wide at top center and 5/8" wide at bottom center where hinge is. Inside it measures 2 1/4" x 1 7/8" but because it is a clamper that size expands with size of writs. Will gladly combine shipping. Thank you for looking.