Set of four op-art tumblers, Italian decorative glass, 1970s

A set of four Italian tumblers from the 1970s, distinguished by striking op-art optical decoration. The multicoloured geometric pattern creates an illusion of movement and depth, transforming a simple functional object into something with distinctly artistic presence. Slender proportions and clear colourless glass provide a neutral ground where the graphic design takes centre stage.

Each tumbler follows a cylindrical form with straight walls that taper gently toward the base. The decoration covers nearly the entire surface, creating a repeating arrangement of coloured bands and concentric lines. The pattern relies on principles of optical art precisely positioned graphic elements produce sensations of dimensionality and vibration, particularly visible when held against light. The transparency of the glass amplifies this effect, allowing colours to merge and shift depending on the viewing angle.

Italian decorative glassware of the 1970s drew heavily from avant-garde artistic movements of the preceding decade. Op-art, with its fascination for visual perception and spatial illusion, found natural application in everyday objects. Italian glass manufacturers, equipped with technical expertise and ornamental tradition, brought these patterns into mass production, democratising access to modern aesthetics. Tumblers with optical decor appeared in homes, cafés and bars alike, becoming part of the era's lifestyle vocabulary.

Standing fourteen centimetres tall, these tumblers suit cocktails, juices and soft drinks. The set of four allows for daily use or serves as a collectible example of Italian decorative glass from the period.

The tumblers remain in good condition with no significant flaws.

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