Cobalt Blue Optic Swirl Glass Vase

This is a hand-blown or mold-blown translucent cobalt blue glass vase, characterized by a bulbous, ovoid body that tapers into a flared, trumpet-style neck and rim. The most prominent feature is the optic ribbing or 'swirl' pattern that wraps diagonally around the lower two-thirds of the vessel, creating a sense of movement and dynamic light refraction. The glass possesses a deep, saturated sapphire hue, a classic color achieved through the addition of cobalt oxide to the glass melt. In terms of construction, the piece shows a seamless flow from the rounded shoulders to the neck, indicating skilled craftsmanship. While no maker's mark is visible from this angle, the style is reminiscent of mid-20th-century American art glass, possibly by manufacturers like Blenko or West Virginia Glass, typically dating from the 1950s to the 1970s. The condition appears excellent with no visible chips, cracks, or heavy abrasions, though some minor shelf wear on the base and faint internal mineral deposits from previous use would be expected for an item of this vintage. The thick walls and substantial base suggest a quality weight and durability common in decorative studio glass from this era.

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