White Ceramic Diner Mug with Swirl Embossing

This item is a heavy-duty, commercial-grade ceramic coffee mug, characterized by its cream or off-white glaze and thick-walled construction typical of diner-style vitrified chinaware. The vessel features a tapered cylindrical body that flairs slightly at the rim and a rounded base. A distinctive decorative element is the raised, diagonal swirl or 'wave' embossing pattern wrapping around the exterior body, adding tactile texture and visual interest. The large, D-shaped handle is robustly attached, designed for a comfortable grip. In terms of condition, the glaze appears glossy with some minor surface scuffing and small dark pinhead-sized spots at the rim, which are common manufacturing artifacts in high-fired industrial stoneware. There are no major chips or cracks visible in the provided image. The utilitarian design suggests a mid-to-late 20th-century style, likely manufactured for the hospitality industry where durability is paramount. The weight and thick porcelain-ceramic material are high-quality indicators for retail or restaurant use, intended to retain heat for extended periods.