Pink opalescent ruffled glass tazza on an ornate metal base

This decorative dish, appearing to be a tazza or compote, features a flared glass bowl with a heavily ruffled or 'crimped' rim. Under normal lighting, the glass exhibits a clear to pale greenish body with a milky pink opalescent hue concentrated at the edges. The user-supplied images demonstrate a strong green fluorescence under both 365nm and 395nm ultraviolet light, which is highly consistent with the presence of uranium as a coloring agent. The bowl is mounted onto a cast metal base, described by the owner as unverified spelter, featuring three ornate legs with scrolled Art Nouveau-style floral motifs. No manufacturer marks or signatures are visible in the provided photos. The metal pedestal shows a dark patina and signs of surface wear, while the glass appears well-preserved with no visible cracks. This piece is stylistically consistent with late 19th or early 20th-century Victorian or Art Nouveau glasswork, such as that produced by Northwood, Fenton, or Davidson, though definitive attribution requires physical inspection of assembly and mold marks. The identification as a uranium glass item is based on the visible UV reaction, subject to confirmation by Geiger counter monitoring.

Based on the provided imagery, I am examining a pink opalescent ruffled glass tazza mounted on an ornate metal tripod base. From what I can see, the glass displays a strong green fluorescence under UV light, indicating the presence of uranium. The owner identifies the base as unverified spelter with Art Nouveau-style motifs. This combination is stylistically consistent with late 19th-century Victorian 'art glass' produced by makers like Northwood or Davidson, though I cannot verify a specific manufacturer without identifying mold marks or signatures, which are not visible here. The value estimate assumes the glass and base are period-correct and not a later marriage of parts. I cannot confirm from a photo if the base is spelter or a different cast alloy, nor can I verify the structural integrity of the glass-to-base connection. The market for uranium glass remains stable due to its 'glow' appeal, with ruffled opalescent pieces generally commanding a premium over plain pressed glass. However, if this piece were found to be a mid-20th-century reproduction or 'in the style of' the Victorian era, the value would likely decrease to the $40 - $60 range. To establish a more precise valuation, an in-person examination would be necessary to inspect for micro-chips, verify the metal composition, and perform a Geiger counter test to confirm the uranium content. Provenance documentation or a verified catalog match would further support the higher end of the estimate. This appraisal is based on the assumption that the item is a genuine antique and not a modern replica.