Spirally twisted canes of colorless and opaque yellow, colorless and opaque white, and translucent deep blue and opaque white glasses; canes formed by heating monochrome rods and twisting them or by drawing and twisting molten glass; canes broken into suitable lengths and laid side by side to form disk-shaped pattern, then fused and tooled to remove gaps and irregularities; cane heated and applied to rim; blank placed on former mold and heated until glass became soft and assumed shape of mold; after annealing, interior ground and polished. Bowl: fragment of rim and upper wall. Rim plain, rounded; upper wall descends almost vertically. Rim consists of blue and white cane; wall consists of parallel canes that descent almost vertically from right to left (when seen from inside) and are arranged so that groups of three colorless and yellow canes (each with double yellow spiral) alternate with single colorless and white cane (with single, loosely wound spiral).