Tempered glass-style bowls with blue floral border

This object consists of a stack of small, white bowls, which appear to be constructed from a thin, tempered glass material consistent with Vitrelle or similar opaque glassware. The top bowl features a repeating blue floral and scrolling vine border along the exterior rim, a design that is stylistically consistent with the 'Old Town Blue' pattern often associated with the Corelle brand. The owner has identified these as 'Old Town Blue Corelle,' however, this attribution remains unverified as no maker's marks or backstamps are visible in the provided image. The bowls have a smooth, glossy finish and a slightly flared rim. In terms of condition, they appear to be in good used condition with no visible cracks or heavy staining, though there are minor dark scuff marks or utility wear visible on the gray and white woven placemat beneath them. The pattern application appears consistent with mid-to-late 20th-century mass-produced kitchenware. Final identification of the brand and age would require an inspection of the underside markings and physical material testing.

Based on the provided image, I have examined a stack of small, white tempered glass bowls featuring a blue floral and scrolling vine border. The owner identifies these as 'Old Town Blue Corelle.' Based on what I can see, the design and material are stylistically consistent with the mass-produced Vitrelle glassware produced by Corning/Corelle under that pattern name. However, I cannot verify the manufacturer from a photo as no backstamps are visible; a physical inspection of the underside is necessary to confirm the brand. The estimate of $15.00 to $30.00 assumes the set is composed of 4 to 6 bowls in the attributed 'Old Town Blue' pattern. Market demand for this specific mid-to-late 20th-century pattern remains steady among vintage kitchenware enthusiasts due to its durability and nostalgic appeal. The condition appears good with no visible chips, though utility wear on the accompanying surfaces suggests regular use. If these bowls were found to be off-brand 'in the style of' glass or lacked the specific maker's mark, the value would likely decrease to a utilitarian range of $5.00 to $10.00. To confirm the attribution, I would need to observe the 'Corelle' or 'Corning' hallmark typically stamped on the base and verify the absence of 'dishwasher haze' or significant etching which can only be determined through tactile inspection and varied lighting. This appraisal represents a projected market value for the assumed attribution for a small stack of bowls in used condition.