There are minor scratches and signs of aging. There are no hallmarks indicating precious metals. *This item was received from my grandmother, and the details are unknown. Size: Diameter approximately 3.1cm, Thickness approximately 0.3cm Weight: Approximately 14.9g *Measurements are approximate. Please allow for some error. *The color may vary depending on the monitor environment. I try my best to make the colors as accurate as possible, but it is not perfect. Please purchase only if you can accept this. *This is a used item, please judge based on the images. I try to describe the item honestly, but there is a possibility of overlooking something. Please inquire in advance if you have any questions. T15104 C #Okinawa #OceanExpo #1975 #Medal #Commemoration #ReversionToJapan