Pair Of Ancient Roman Mosaic Glass Bangle Bracelets Circa 1st-2nd Century AD

1st-2nd century AD, of circular form, with two exterior spiraled surrounds, in black and white with interior green glass. Dark green bangle is approximately 2 7/8" inside and 1/2" wide. Light green bangle is approximately 2 13/16" inside and 7/16" wide. All in excellent condition, no chips or cracks. Thanks for looking!