Slip-Cast Modernist Ceramic Vessel (Basaltware style)
Decorative art, slip-cast ceramic vessel • Likely a North American or European commercial pottery manufacturer such as McCoy, Haeger, or a studio pottery such as Gainey or Architectural Pottery; the "Patent Pending" stamp indicates mass production.
Style & Movement
Mid-Century Modern / Brutalist
Medium & Technique
Terracotta or stoneware with a dark matte manganese/iron-wash glaze finish on the exterior and an unglazed or clear-glazed orange slip interior.
Creation Period
Mid-20th Century, circa 1950s–1970s
Dimensions & Format
Approximately 6–10 inches in height, circular base with a faceted body.
Subject Description
A utilitarian or decorative vessel featuring a faceted, hexagonal or octagonal body. The exterior is treated with a dark, rubbed pigment to simulate aged bronze or basalt, contrasting with a bright industrial orange base.
Condition & Value Assessment
Condition Assessment
Fair to Good; significant surface wear and chips are visible.
Estimated Market Value
$25 – $75 (USD)
Auction Estimate
$15 – $40 (USD)
Provenance History
Unknown; likely a mass-market retail item. Bases marked 'Patent Pending' were common for mid-century American ceramic designs during their first years of production.
Art Historical Significance
Represents the democratization of modernism in the mid-20th century, where industrial manufacturing techniques like slip-casting were used to bring avant-garde sculptural forms into the domestic sphere.
Notable Features
Distinctive 'PATENT PENDING' and numerical '777' or 'LLL' mold marks on the base; high-contrast dual-tone color scheme between the base and the body.
Condition Issues
Prominent surface scuffs on the dark glaze, significant chip on the foot rim exposing the light material underneath, and interior dirt/residue.
Conservation Recommendations
Gentle cleaning with a micro-damp cloth to avoid lifting the dark surface wash; display in a stable environment to prevent further chipping to the brittle foot rim.