Tapered glass tumbler in a style consistent with mid-20th-century glassware

This item is a clear glass tumbler with a tapered, cylindrical form. Its most prominent physical characteristic is the exterior decoration, which consists of a continuous green glass threading wrapped horizontally around the body of the vessel. This technique creates a ribbed or coiled texture that is visually consistent with a 'ringed' or 'beehive' motif. The glass appears to have a slight greenish cast, which may be characteristic of specific vintage soda-lime glass compositions or a reflection of the green decoration. The owner identifies this as 'handblown,' a claim that is stylistically consistent with the slight irregularities seen in the threading and the thickness of the rim, though this cannot be definitively verified without a physical inspection for a pontil mark or other glassmaking indicators. There are no visible maker's marks, signatures, or etched labels visible in the image to attribute this to a specific manufacturer. The piece exhibits a style consistent with mid-20th-century American or European colorful glassware. The condition appears to be fair to good, with no obvious cracks or large chips visible, though the surface may show faint signs of age and handling through micro-scratching. The identification is hedged as the item lacks a visible maker's mark and could be the work of numerous different manufacturers or studios specializing in glass threading techniques.

Based on my visual analysis of the provided image, I am evaluating this tapered glass tumbler as a mid-20th-century piece of utility glassware. The owner identifies this as 'handblown,' which appears consistent with the visual irregularities and the application of the green horizontal threading; however, I cannot confirm this without a physical inspection to locate a pontil mark or evaluate the glass's weight and density. The design is characteristic of the 'beehive' or 'ringed' motif common in American and European studio glass from the 1940s through the 1960s. Because there are no visible maker's marks or signatures, I am treating the attribution to a specific studio or manufacturer as a hypothesis. My value estimate of $45.00 to $75.00 assumes the item is a vintage, hand-worked piece from a reputable manufacturer of that era, such as those produced in the Empoli region of Italy or by American companies like Blenko in their simpler patterns. I cannot determine the presence of micro-fractures or 'flea bites' from the photo, and any such condition issues would depress the value significantly. In the current market, mid-century colorful glassware remains popular for decorative use, though unbranded pieces command lower prices than those with verified labels. To move beyond this estimate, a physical examination by a glass specialist to confirm the manufacturing method and a search for archival catalog matches would be necessary. If this item is found to be a modern mass-produced reproduction or lacks the 'handblown' characteristics identified by the owner, the value would likely fall into the $10.00 to $20.00 range.