AI Appraisal Estimate

The item is a ceramic dinner plate, likely made of ironstone given the visible backstamp. It features a bright white base color with a striking design on the rim. The design consists of a geometric pattern of various-sized squares and rectangles, predominantly in dark brown or black, creating a modern or mid-century aesthetic. The construction appears sturdy, typical of ironstone which is known for its durability. The top surface of the plate shows some reflections, suggesting a glossy, smooth glaze. The bottom of the plate prominently displays the manufacturer's backstamp: "1792 RIDGWAY IRONSTONE ENGLAND" with a crown logo, indicating its origin and material. Below this, it reads "ESPRESSO REG'D TRADE MARK MADE IN ENGLAND UNDERGLAZE AND DETERGENT PROOF." This marking confirms it is from the Ridgway company, is ironstone, and the pattern name is 'Espresso.' The 'underglaze and detergent proof' indicates the pattern is durable and suitable for everyday use and dishwashers. The 1792 date likely refers to the establishment of the Ridgway potteries. The condition appears to be good with no obvious chips, cracks, or significant wear visible from the provided image. The glaze seems intact and the colors of the pattern are clear and vibrant. This piece exhibits quality craftsmanship, typical of English pottery manufacturers known for their ironstone production.

Upon visual examination, this Ridgway Ironstone dinner plate, in the 'Espresso' pattern, appears to be in excellent used condition. The backstamp, reading '1792 RIDGWAY IRONSTONE ENGLAND' with the crown logo and 'ESPRESSO REG'D TRADE MARK', seems authentic for mid-20th-century production despite the 1792 date, which refers to the company's founding. The glaze is intact, and there are no visible chips, cracks, or crazing. The 'Underglaze and Detergent Proof' marking is a key feature of this durable, mass-produced tableware. The market value for individual pieces from this line is modest. The 'Espresso' pattern, with its bold geometric design, appeals to collectors of Mid-Century Modern decor, but Ridgway produced this tableware in large quantities, making individual plates relatively common. Current market comparables show single dinner plates typically selling in the $8 to $20 range, depending on the platform and condition. The value is primarily driven by replacement needs for collectors completing a set, rather than inherent rarity. While the markings suggest authenticity, a definitive assessment is limited by the digital image. A full authentication would require in-person inspection to feel the weight, examine the glaze for subtle imperfections or restoration under UV light, and confirm the method of the backstamp application. Without handling the piece, I cannot completely rule out a high-quality reproduction, though it is unlikely for this type of ware. Provenance or documentation would not significantly alter the value for this specific item.