Gorgeous marbled blue moon inkspot octagon shaped bakelite bangles with slash carving, likely by DVF as I have others in this style that have the DVF cartouche inside. Measurements are 13/16" wide X 2 1/2" wrist opening X wall thickness of 5/16" - 3/8".
Excellent condition and rare to find this color still so blue without being restored. The original color on this bangle would have pockets of transparent blue and can still be seen when held up to bright light.