This is a medium-sized, easy-to-use plate. Approximately 19.5 cm in diameter and 3.5 cm deep. I purchased it from an antique shop, so I'm not certain, but compared to others, it's in beautiful condition, so I believe it's unused or new. It's enjoyable just to look at. It's a Fire King Shell Gold Rim Plate. It's a milk-white glass plate with gold paint on the rim. The "Shell" series is characterized by its flowing, shell-like curves. It's a vintage item manufactured by the Anchor Hocking Company in the United States from the 1940s to the 1960s. It's popular as a collector's item.