AI Appraisal Estimate

This is a hand-blown glass vase produced by Blenko Glass Company, an iconic American manufacturer based in Milton, West Virginia. The piece is crafted in a vibrant blue architectural glass, likely in a shade such as 'Bermuda Blue' or 'Cerulean,' characteristic of mid-to-late 20th-century production. Its form features a flared, wide-mouth rim that tapers sharply into a slender neck before expanding into a bulbous, ribbed body with a subtle 'optic' texture. This optic effect creates vertical undulations that catch and refract light throughout the piece. A key identifier is the original silver-and-black oval 'Blenko Handcraft - Made in USA' foil label still affixed to the center of the body, which significantly enhances its provenance and value. The vase appears to be in excellent vintage condition; the glass remains clear without visible 'sick' clouding, and the rim shows no obvious chips or flea bites. The base likely has a rough pontil mark or a fire-polished base consistent with Blenko's handmade processes. The craftsmanship is high-quality, showcasing the thick-walled construction and rich coloration the company is famous for. This style is consistent with mid-century modern design principles, balancing organic curves with functional elegance.

I have conducted a visual examination of this Blenko Handcraft Blue Optic Vase. The piece exhibits the high-quality glass density and saturated coloration associated with mid-century West Virginia glass production. The presence of the original silver-and-black foil label is a significant value driver, as it confirms the piece was likely manufactured between the 1950s and 1980s and preserves its historical integrity. The 'optic' ribbing and flared rim are hallmarks of the artisanal techniques utilized by Blenko's master blowers. The market for mid-century modern (MCM) glass remains robust, specifically for identifiable American brands like Blenko. Collectors currenty favor 'Bermuda Blue' and similar cool tones. A 'near-mint' condition report, free of internal clouding ('sick glass') or impact nicks on the rim, places this at the higher end of the standard production range. Comparables for signed or labeled optic pieces of this scale typically realize $150–$225 at specialty auctions, with retail gallery prices reaching $275. However, there are limitations to this digital appraisal. I cannot physically verify the presence of a fire-polished or rough pontil mark, which is necessary to differentiate this from high-quality period knock-offs. Furthermore, a physical inspection is required to detect 'flea bites' or minute surface scratches that are invisible in photographs but impact value. Final authentication would require confirming the weight of the glass and checking for base wear consistent with age. Prospective buyers should consult the Blenko catalogs (specifically the 1960s-70s editions) to match the exact shape number for definitive cataloging.