Mid-Century Modern Art Glass Paperweight / Sculpture

This is a multifaceted art glass object, likely a paperweight or small decorative sculpture, showcasing an abstract organic design encased in heavy, clear crystal. The central motif features a vibrant orange, teardrop-shaped core that is horizontally wrapped with fluid, ribbon-like strands of yellow, black, and white glass filigree. This internal decoration suggests a Sommerso or encased glass technique, characteristic of mid-20th-century Murano or Scandinavian studio glass. The exterior form is asymmetrical and blocky with a flattened base, featuring thick, polished bevels and chamfered edges that create internal reflections and prismatic distortions of the colorful core. The clear glass appears exceptionally bright with a slight blue-violet refractive tint at the thickest edges, indicating a high lead content or high-quality optical crystal. No visible signatures or acid-etched marks are immediately apparent from the top view, though such marks are typically located on the base. The piece appears to be in very good condition with no major chips or internal fractures visible, though minor surface scratches and shelf wear on the flat bottom would be expected for a vintage piece of this style, likely dating from the 1960s to 1980s.

I have carefully examined the provided images of this multifaceted art glass sculpture. My assessment identifies it as a high-quality example of Mid-Century Modern laboratory-grade lead crystal or optical glass, likely originating from a Swedish studio such as Orrefors or Kosta Boda, or possibly a high-end Murano house like Vistosi. The internal 'Sommerso' teardrop with its intricate yellow, black, and white filigree ribbons demonstrates significant technical mastery. The high refractive index noted at the chamfered edges suggests a substantial lead content. From a visual standpoint, the piece appears to be in very good vintage condition. I observe no 'bruises,' internal heat cracks, or significant fleabites. The market for studio glass remains steady, especially for geometric, sculptural pieces that fit contemporary minimalist interior design. Comparable sales of unsigned optical crystal paperweights of this size typically fall in the $300-$500 range, while documented pieces by known designers like Vicke Lindstrand or Alfredo Barbini can exceed $1,200. However, a definitive valuation is hindered by the lack of a visible signature or 'pontil' mark analysis. Without an in-person inspection of the base to verify authentic shelf wear and acid-etched markings, I cannot definitively attribute this to a specific maker. Full authentication would require a tactile examination to confirm the weight and resonance of the crystal, as well as a search for micro-signatures under UV light or magnification. For insurance purposes, the estimated replacement value is set at $550, assuming the item is an authentic period piece from the 1960s-70s.