Glass1930s Manganese‑Clarified Pressed Glass Sherbet Bowls UV Reactive Set of 4

Elegant pressed glass dessert bowls with radiant geometric and floral patterning, dating as early as the 1930s. Each bowl measures 3.5" across and stands 2.5" tall, crafted in clear glass clarified with manganese dioxide—a decolorizing agent used before and after WWI. Though manganese use declined in U.S. production after 1915, European and Depression-era American glassmakers continued incorporating it into pressed designs well into the 1950s. Under UV light, these bowls glow a soft green, revealing their authentic manganese content. Unlike uranium glass, this glow is subtle and non-radioactive, prized by collectors for its historical charm. The set of four is in pristine condition—no chips, cloudiness, or scratches—making it ideal for display, dessert service, or educational use. A beautiful example of mid-century craftsmanship with hidden chemistry and timeless appeal.