Antique Kralik Spiral Optical Glass Vase

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Antique Kralik Spiral Optic Iridescent Uranium Glass Vase

Bohemia, circa 1900–1915

This striking hand-blown vase exhibits the distinctive spiral optic … Read more Antique Kralik Spiral Optic Iridescent Uranium Glass Vase

Bohemia, circa 1900–1915

This striking hand-blown vase exhibits the distinctive spiral optic pattern associated with Wilhelm Kralik Sohn of Eleonorenhain, Bohemia. The body is formed in an elegant lobed or melon shape with deeply twisted ribbing that creates a dynamic optical effect under light.

The glass is a vivid citron-yellow uranium formulation, glowing a bright green under ultraviolet illumination. Its delicate iridescent surface shimmers with subtle tones of gold, violet, and pale blue—typical of Kralik’s early 20th-century iridized finishes. The piece is lightweight and thin-walled, a hallmark of Kralik craftsmanship, and the rim is flared and fire-polished, showing skilled finishing without a ground pontil mark. See less