Blue glass art bowl, bears a signature reading 'Shepardson Studios 1999'

This is a shallow, circular art glass bowl measuring approximately 5 inches in diameter, presented here against a wooden tabletop. The piece is rendered in a deep cobalt blue hue with an iridescent finish that catches the light, exhibiting reflective purple and violet sheens across its interior surface. The construction features a textured, slightly uneven rim and a ring of distinct, carved or impressed elongated leaf-like indentations encircling the central depression. Regarding condition, the visible surfaces appear to be in good order with standard minor surface wear consistent with gentle handling, though no deep scratches or structural cracks are readily apparent from this angle. The visual identification is primarily descriptive due to the inability to inspect the reverse base from the provided photograph. However, the owner-supplied notes suggest the piece bears an unverified signature and date on the reverse bottom reading 'Shepardson Studios 1999'. Craftsmanship details such as the organic shape and iridescent treatment suggest a studio art glass production, though this remains an unauthenticated stylistic attribution.

Based on what I can see in the provided image, this shallow art glass bowl features a deep cobalt blue hue with an iridescent finish and a textured rim with impressed leaf-like details. I can't verify from a photo whether the materials and craftsmanship align perfectly with an established studio producer. Per user submission: attributed to Shepardson Studios 1999, referencing an unverified signature on the reverse bottom. My estimate of $100-$200 assumes that this attribution is correct; however, I would need physical inspection to confirm the nature of the signature and the quality of the glassmaking techniques. Studio art glass of this scale and visual presentation generally appeals to collectors of contemporary decorative arts, though market demand fluctuates based on current interior design trends rather than high-tier investment performance. The value estimate is heavily dependent on authentication; if physical inspection reveals the piece is an unattributed studio work, a modern reproduction, or made 'in the style of' rather than bearing a valid studio signature, the value would likely decrease to the $30-$60 range typical of decorative mass-market art glass. To strengthen the attribution, one would need in-person examination by a specialist familiar with late-20th-century American studio glass, alongside potential research into Shepardson Studios production archives.