Yellow and white swirl art glass paperweight

This item is a spherical art glass paperweight, approximately 3 inches in diameter, featuring an intricate internal spiral or 'swirl' pattern. The construction consists of a solid, clear glass exterior casing that encapsulates ribbons of butterscotch yellow and opaque white glass. These colored filaments are arranged in a dense, undulating helical formation reminiscent of a vortex or coiled ribbon. Upon close inspection, the clear glass exhibits exceptional clarity with minimal inclusions, though small, controlled air bubbles (seeds) are scattered throughout the design, which is a common characteristic of hand-blown or hand-tooled glasswork. The bottom of the piece likely features a ground and polished pontil mark, necessary for a stable, flat resting surface. No visible maker's marks, signatures, or acid-etched stamps are apparent in the primary view. The condition appears excellent with no significant chips, cracks, or deep abrasions visible on the surface. The style suggests a mid-to-late 20th-century origins, likely produced by a studio glass manufacturer such as those found in Murano, Italy, or a domestic American glass house. The high level of craftsmanship is indicated by the symmetry of the swirl and the quality of the glass fusion.