Hand-Blown Art Glass Swirl Cylinder Vase

This item is a cylindrical hand-blown art glass vase or vessel, characterized by a dynamic, organic swirl pattern. The piece is constructed from clear glass with internal veining of olive green and translucent white, creating a marbled or smoky 'calcedonia' style effect. Physically, the object features thick, heavy walls and a weighted base, indicating a high level of craftsmanship and structural integrity typical of mid-to-late 20th-century art glass. The rim is slightly uneven and hand-finished, which is a hallmark of the blowing process. Notable features include the spiral movement of the pigments, which transition from dense bands at the bottom to more ethereal, wispy clouds near the top. Small bubbles, known as 'seeds,' are trapped within the glass, further confirming its hand-crafted nature. There is a visible small white sticker or remnant of a label on the exterior side, though the text is not legible. The condition appears excellent with no visible cracks or significant chips, although there is a slight surface scratch or line visible on the lower left side, which may be a surface scuff or a tool mark from production. The style is reminiscent of Scandinavian or Italian Murano designs from the 1960s-1970s, though it lacks a definitive maker's mark in the view provided. The overall aesthetic is one of modern organic minimalism.

I have carefully examined the provided descriptors and visual characteristics of this hand-blown art glass swirl cylinder vase. The piece exhibits high-quality craftsmanship, particularly in the density of the glass and the 'calcedonia-style' integration of olive and white pigments. The উপস্থিতি of controlled 'seeds' and the hand-finished rim suggest a studio environment rather than mass production. The aesthetic strongly aligns with mid-century modern Scandinavian (such as Kosta Boda or Holmegaard) or Italian Murano traditions, though the lack of a signature or clear label limits its attribution to a specific master blower. The condition is good, though the noted surface scuff on the lower left and the residue from a non-original sticker slightly impact the cosmetic appeal. The current market for unsigned mid-century art glass remains steady, driven by collectors of 'Organic Modern' decor. Comparables for unsigned but well-executed European Art Glass of this size and weight typically hammer between $150 and $250. This value would increase significantly if the remnant label could be identified as a prestigious maker. Authenticity as a period glass piece is likely, but this assessment is based solely on visual photographic evidence. A definitive valuation would require an in-person physical inspection to examine the 'pontil' mark at the base for wear patterns consistent with age, and to verify the glass composition under UV light to rule out modern reproductions. Detailed provenance or a matching catalog entry would be required to elevate this from a decorative object to a specific designer investment piece.