Controlled Bubble Green Art Glass Paperweight

This is a solid, spherical art glass paperweight, measuring approximately 3 to 4 inches in diameter. The piece is constructed from high-transparency clear lead or crystalline glass, featuring a vibrant, emerald green core. The internal design exhibits a 'controlled bubble' or 'Bullicante' style, with a prominent central air tear-drop and radiating vertical white latticino or zanfirico-style threads that mimic the segments of a citrus fruit or a flower blossom. The external surface is a smooth, polished fire-polished finish, displaying no visible makers marks or signatures in the photograph, which is common for mid-century production pieces. The overall condition appears excellent with a high gloss, showing no significant scratching, chips, or clouding. The craftsmanship suggests a mid-20th-century origin, likely between 1960 and 1980, reminiscent of work produced by Murano factories or American glass houses like Blenko or Viking. The base is presumably flattened and ground for stability, though obscured in this view. The symmetry of the internal optic design indicates a high level of skill in glassblowing and internal manipulation.