Multi-colored triangular glass cups, possibly mid-century style

A collection of glass vessels featuring a distinctive rounded triangular or trefoil-shaped rim. The items appear in various colors, including amber, smoky grey, light blue, peach, and a vibrant neon green. The green vessel exhibits an intense fluorescence under what appears to be ultraviolet light, which is consistent with glass containing uranium oxide; however, this cannot be verified without a Geiger counter or controlled lighting analysis. The user claims one vessel 'glows uranium,' which is an unverified attribution of material composition. The glass appears to be thick-walled with a weighted base. Stylistically, the organic, asymmetrical shapes are consistent with mid-20th-century glass design, such as makers like Blenko or similar Scandinavian art glass houses, though no maker's mark or signature is visible to confirm a specific manufacturer. Condition appears used, with visible retail barcode stickers adhered to several pieces. The finish appears smooth with no obvious chips or cracks visible in the overhead perspective. Without physical inspection, the exact material purity and age remain unconfirmed hypotheses.

I have examined the digital image of these five multi-colored glass vessels. Based on what I can see, the collection features a mid-century modern aesthetic with weighted bases and trefoil-shaped rims. The user notes that one vessel 'glows uranium,' which I have treated as a hypothesis. I can see a fluorescent response in the green vessel; however, I cannot verify the presence of uranium oxide from a photo alone, as a Geiger counter or controlled UV testing would be required. The organic forms suggest a style consistent with mid-20th-century manufacturers such as Blenko or certain Scandinavian glass houses. I cannot determine a specific maker or age, as no labels or signatures are visible, and retail barcode stickers suggest recent second-hand market participation. My value estimate of $60 to $150 assumes these are high-quality vintage glass pieces of the mid-century period. This valuation is based on the general market demand for colorful, sculptural glassware from this era. If these were to be linked to a prestigious designer through physical hallmark verification or provenance, the value could increase. Conversely, if they are modern mass-produced copies 'in the style of' mid-century glass, the value would likely fall to $20 to $40 for the set. A physical inspection is necessary to evaluate the material purity, check for microscopic wear consistent with age, and confirm the chemical composition of the green vessel. Authenticity depends on these unverified factors.