Blown glass stemware with decorative spiral trailing

This image depicts a collection of contemporary or modern decorative art glass stemware displayed on a wooden surface, surrounded by various other glassware pieces. The primary focus is on two distinct tall, slender champagne flute or trumpet-form glasses made of clear blown glass. One prominent glass in the left foreground features a delicate cobalt blue glass thread or trailing spiraling upward around its elongated conical bowl and stem. A second prominent glass in the center foreground features a similar slender profile embellished with a translucent green glass spiral trailing. The glass is clear, lightweight in appearance, and shows smooth, flowing contours typical of free-blown or mold-blown studio glass production. There are no obvious maker's marks, signatures, or stamps visible in the photograph. The physical condition appears generally good and clean with no major chips or fractures immediately apparent, though minor surface wear consistent with handling cannot be ruled out. The style suggests late 20th to early 21st-century decorative glassware, possibly produced in a European studio glass tradition where applied contrasting glass threads are a common decorative motif. The identification of this piece is entirely visual, based on the form and decorative glass application, and no specific maker can be assigned without physical inspection of a mark.

Based on what I can see in the photograph, this item is a pair of contemporary studio art glass champagne flutes featuring applied cobalt blue and translucent green glass spiral trailing. The form displays smooth, flowing contours characteristic of free-blown or mold-blown decorative glassware likely produced in the late 20th to early 21st-century European studio glass tradition. However, I cannot verify from a photo whether these pieces were crafted by a notable studio or master artist, as no maker's marks, signatures, or stamps are visible. A physical inspection would be needed to confirm the exact weight, pontil mark characteristics, and any subtle signatures that might be etched into the base. The estimated value range of $150 to $300 assumes that the attribution to quality contemporary studio glass is correct, taking into account the generally good and clean condition visible without major chips or fractures. General market demand for decorative art glass stemware with applied trailing is moderate, driven by collectors of modern functional studio glass. If this attribution is incorrect and the items are instead unsigned mass-market reproductions, copies, or created simply in the style of studio glass, the value would likely decrease significantly to the $40 to $80 range, reflecting standard decorative table use rather than collectible art. To fully establish authenticity, maker attribution, and value, an in-person examination by a glass expert along with provenance documentation would be required.