AI Appraisal Estimate

This item is a clear, colorless lead glass sculpture, typically associated with Steuben Glass Works due to the high-clarity crystal and the specific cursive 'Steuben' signature visible on the base. The object features a flowing, organic form with thick, polished glass walls and a stylized frosted base that exhibits a rhythmic, sawtooth or jagged edge design. The material displays high refractive properties, characteristic of fine crystal. The engraving is hand-etched in a cursive script, which is a key identifying marking for genuine Steuben pieces produced in Corning, New York. In terms of condition, the glass appears bright with no major cracks visible, although some light surface scratches or scuffing may be present on the underside from contact with surfaces. The style is mid-to-late 20th-century modernism, showcasing the 'brilliant' glass style favored by the company. The craftsmanship is evident in the seamless transition between the frosted texture and the high-polish finish.

I have conducted a visual examination of the clear lead glass sculpture, identifying it as a signature piece from Steuben Glass Works. The item exhibits the proprietary '10-24' formula glass, known for its exceptional clarity and high refractive index. The cursive hand-etched 'Steuben' signature on the base is consistent with authentic marks from the mid-to-late 20th century. The condition appears excellent with characteristic shelf wear (scuffing) on the underside, which paradoxically supports its age and use. The market for Steuben remains stable for organic, modernist forms, though values have softened since the Corning factory's initial closure in 2011. Comparables for mid-sized abstract Steuben sculptures of this complexity typically realize between $400 and $700 at specialized auction houses. Demand is driven by the purity of the material and the company's legacy of American craftsmanship. However, a definitive attribution is limited by the digital nature of this inspection. A physical examination is required to verify the 'ring' (sonic resonance) and weight typical of lead crystal, as well as to inspect for internal 'seeds' or bubbles that would indicate a lower-quality imitation. Full authentication would ideally include the original gray flannel bag and presentation box, along with a tactile review of the engraving depth to ensure it was not applied post-production to a generic blank.