Cobalt blue glass cup and saucer (not authenticated)

This is a two-piece tableware set consisting of a matching teacup and saucer crafted from translucent cobalt blue glass, appearing consistent with mid-century modern kitchenware or depression glass styles. The cup features a rounded body with distinct horizontal ribbing or concentric banding along the interior and exterior walls, accompanied by a small applied loop handle. The saucer is simple and circular with a slightly recessed center to hold the cup securely. The coloration is a deep, vibrant cobalt blue that catches the light uniformly across the surfaces. There are no visible chips, cracks, or heavy abrasions apparent in the photograph, though minor surface wear may be present upon closer physical inspection. No maker's marks, stamps, or signatures are visible from this top-down perspective, and the identification as potentially belonging to a known mid-century or depression glass maker (such as Hazel-Atlas or Anchor Hocking) is based entirely on the characteristic color and ribbed ring design rather than any verifiable trademark. The attribution remains unverified, and the set should be evaluated further through physical inspection of the base for any faint mold marks.

Based on what I can see in the photograph, this two-piece tableware set consists of a translucent cobalt blue glass teacup and saucer featuring a distinctive ribbed ring design. I cannot verify from a photo whether this piece was manufactured by a prominent mid-century maker such as Hazel-Atlas or Anchor Hocking, as the identification is a working assumption based purely on style and color rather than a visible maker's mark or signature. I would need physical inspection to confirm the presence of faint mold marks or base signatures. The estimated value range of $25 to $50 reflects typical market behavior for mid-century cobalt glass sets of this type, assuming the stylistic attribution is correct. Demand for vintage colored glassware remains steady among casual collectors and home decorators. However, if physical inspection reveals this piece to be a later reproduction, replica, copy, or produced simply in the style of mid-century kitchenware rather than by a recognized maker, the value would likely decrease to the $10 to $15 range. To establish a more precise evaluation and assess authenticity, an in-person examination by a qualified appraiser specializing in twentieth-century glassware would be required.