Japanese Narumi Porcelain Item Backstamp

This image shows the base or backstamp of a porcelain item, manufactured by the renowned Japanese brand Narumi. The surface is finished in a high-gloss black glaze that exhibits significant signs of age and use, including widespread surface scratching, swirl marks, and mineral spotting or 'water spots.' The manufacturer's marks are applied in a contrasting silver or light gray tone. The markings include the Narumi script logo inside a circular emblem, the words 'PORCELAIN' and 'MADE IN JAPAN' in a block serif font, and what appears to be a stylized signature or collection name at the bottom, possibly 'Milton K. Nishi.' The craftsmanship typically associated with Narumi from the mid-20th century (c. 1950s-1970s) suggests a high-quality bone china or fine porcelain body beneath the glaze. The wear pattern indicates it may be a frequently used tabletop item such as a plate, bowl, or tray. There are no visible cracks or chips in this view, though the glaze integrity has been compromised by micro-abrasions over time, dulling the original mirror-like finish.