This elegant tall vase features a dramatic twisted (torqued) form, achieved while the glass was still hot, demonstrating advanced glassblowing skill. The intense cobalt blue core is encased within clear glass, producing a striking depth effect. Such sculptural twist vases were widely produced in Northern Bohemia during the 1970s and are closely linked to factories such as Chřibská and Sklo Union, often sold internationally under export labels like “Rubín Glass”. The combination of height, fluid movement and rich colour makes this piece particularly desirable among collectors of Mid-Century Modern and Bohemian art glass. ⸻ Technical details • Object: Art glass vase • Material: Hand-blown glass • Technique: Twisted hot-worked glass (sommerso effect) • Style: Mid-Century Modern / Bohemian Modernism • Origin: Czechoslovakia • Manufacturer: Bohemian glassworks (export production) • Period: ca. 1970–1980 • Height: 25 cm • Width: 8 cm • Signature: Unsigned • Labels: Original export label (“Rubín Glass”)