Bands of various colors, spirally twisted canes and mosaic glass elements; cast (mosaic glass technique). Floor of bowl; quadrant design, cp. 66.1.214, each quadrant containing pairs of like bands arranged in V with mosaic glass element at junction. Mosaic glass elements are square or diamond-shaped with opaque white dot at center, surrounded by squares or diamonds of colorless, opaque white, translucent amethyst and opaque yellow glass. V-shaped components are, from center toward rim: opaque yellow laminating colorless, translucent blue laminating opaque white, opaque white laminating colorless, translucent green laminating opaque yellow, translucent amethyst and opaque yellow.