Cobalt Swirl Witch Ball
Decorative Art / Hand-blown Glassware • Unidentified studio glass artist; likely produced in a regional American or British glass studio (e.g., Mount St. Helens Glass or various West Virginia glassworks).
Style & Movement
Studio Glass / Traditional Folk Craft
Medium & Technique
Hand-blown soda-lime glass with internal 'nailsea' style trailing. The technique involves applying ribbons of molten cobalt glass to a clear gather, which are then pulled or swirled before being blown into a spherical mold.
Creation Period
Modern / 20th to 21st Century (likely contemporary production)
Dimensions & Format
Approximately 4 to 6 inches in diameter; spherical format.
Subject Description
A hollow glass sphere featuring a translucent clear body decorated with rhythmic, organic swirls of deep cobalt blue. Historically, 'witch balls' were hung in windows to ward off evil spirits or 'spells' by capturing them within the hollow interior.
Condition & Value Assessment
Condition Assessment
Good/Very Good. The surface appears smooth with high clarity, though the pontil mark (where the blowpipe was attached) shows typical rough edges consistent with hand-blown manufacturing.
Estimated Market Value
$40 - $85 USD
Auction Estimate
$30 - $60 USD
Provenance History
Unknown; likely acquired through secondary market or gift shop retail. No visible studio stamps or acid-etched signatures are apparent in the image.
Art Historical Significance
Represents the continuation of 18th and 19th-century folk traditions into modern decorative arts. While historically significant as a superstition-based objects of the Victorian era, modern versions are valued primarily for their aesthetic and decorative qualities.
Notable Features
Distinctive cobalt blue trailing pattern; hand-worked closure point; high transparency of the base glass suggest modern chemical purities.
Condition Issues
Minor surface scratches (shelf wear) near the base; unfinished/sharp pontil scar at the closure point; internal dust or residue common in hollow glass items.
Conservation Recommendations
Clean with a soft microfiber cloth and mild soap; avoid abrasive cleaners that may scratch the glass surface. Display away from high-traffic edges where it may roll and break.