Victorian Tortoise Shell & Shell Cameo Bangle Bracelet Circa. 1880 American . Graduated open tortoise shell bangle with shell cameo framed in silver. The bangle is 1 1/2 inches wide at widest and 1 inch at narrowest. The wonderful shell cameo measures 1 1/8 inches high and 1 inch wide. Beautifully designed and executed. 23.0 gr. 14.7 dwt. Will fit small and medium size wrists.