This is a set of four TEN 6L6-GT tubes. * Three are black plate and one has a double getter ring. There are some scratches and dirt due to aging. There may be scratches or missing parts on the lettering. These items have been checked with a TV-7 tube tester. I will keep the price down as they haven't been used for a long time, but I have confirmed that they are in good condition. Please refrain from purchasing if you are sensitive to items stored at home. These are used items, so I will sell them to those who understand.