Thank you for viewing. Vacuum tube 6CZ5, 2 tubes, collector's item. Please check the product name, manufacturer, and condition in the photos. I read from the labels, but please forgive any discrepancies. The printing on the right side may be blurred and different. Only one box is from Hitachi. Unable to confirm operation, and stored for a long time, so I don't know if it works properly. Please consider it as a collector's item or junk item. There is no guarantee of operation. Therefore, the product name includes "collector's item." If you agree, please purchase.