Hand-Blown Art Glass Swirl Paperweight

This is a spherical, hand-blown art glass paperweight featuring a sophisticated internal decor scheme. The object consists of a solid clear glass casing that encapsulates a central core. The core is characterized by alternating spiraling bands of deep, opaque amethyst or black glass and textured, shimmering silver-white ribbons. These textured bands appear to be created using a 'frit' or 'scavo' technique, where finely crushed glass or metallic inclusions are applied to create a sparkling, granular effect reminiscent of stardust or frost. The construction demonstrates high craftsmanship typical of mid-to-late 20th-century studio glass, possibly in the style of Murano or American art glass houses. The smooth, polished exterior surface shows excellent clarity, with minor light-catching surface scratches consistent with age and shelf wear on the base. There are no visible chips, deep gouges, or internal fractures. The lack of visible air bubbles in the clear casing suggests a high-quality glass batch and careful annealing. It likely dates from the 1970s to the 1990s. The weight appears substantial, indicating solid glass construction throughout. While no maker's mark is visible from this angle, the precision of the spiral suggests an experienced glassblower.