A blue geometric patterned plate, approximately 15cm in diameter. Unused, but there is some fading due to storage friction. According to Ikuro Adachi, the effect remains the same even if the color fades. - Design: Blue spirals and atomic patterns - Back stamp: Fukagawa Seiji - Size: Approximately 15cm diameter, 3cm height - Type: Medium plate (of this kind) Form Wave Energy Research Institute Thank you for viewing.