Set of three marbled glass lamp shades

This set consists of three matching glass lamp shades featuring a distinctive swirling, marbled pattern in shades of translucent white, grey, and deep charcoal black. The shades exhibit a bulbous, teardrop or melon-like body profile with a narrow neck and a flared, rounded rim at the top opening. Each shade is crafted from blown art glass with a smooth, glossy exterior finish, showing natural variations in the swirling glass ribbons that indicate hand-crafted or mold-blown production techniques. There are no visible maker's marks, signatures, or stamps present on the exterior surfaces shown in the image. The items appear to be in good overall condition with no obvious chips, cracks, or structural damage visible from this angle, though minor surface dust and handling wear may be present upon closer physical inspection. Stylistically, the appearance is consistent with mid-century modern or contemporary decorative lighting fixtures, often used for pendant lights or multi-light ceiling fixtures. The identification is based entirely on visual observation of the physical form and material characteristics, with no maker attribution made due to the absence of legible markings.

Based on what I can see in the photograph, this set comprises three matching glass lamp shades featuring a distinctive swirling, marbled pattern in translucent white, grey, and deep charcoal black. The bulbous, teardrop-like body profile and glossy finish suggest blown art glass, consistent stylistically with mid-century modern or contemporary decorative lighting fixtures. However, I can't verify from a photo whether these are hand-blown studio pieces or mass-produced commercial items, as there are no visible maker's marks, signatures, or stamps on the exterior surfaces shown. My valuation assumes the higher end of decorative art glass utility for a matched trio; comparable unbranded art glass shades of this style typically trade in the $150 to $250 range within the current secondary market. Condition appears good overall based on visual inspection, with no obvious chips or cracks, though would need physical inspection to confirm the absence of subtle rim fleabites or interior wear. The stated value depends on the assumption that the glass is structurally sound and safely wired or mountable. If physical inspection reveals these to be modern reproductions, mass-market replicas, or simply generic decorative items 'in the style of' mid-century lighting rather than period-appropriate pieces, the value would likely drop to the $50 to $100 range. To fully confirm the age, exact production method, and potential maker, one would need in-person examination by a specialist, analysis of the glass composition and pontil marks, and a thorough search for elusive stamps or labels.