This vintage Sylvania 6GU7 tube is brand new and has never been used or removed from its original packaging. It is a rare find and perfect for collectors of vintage electronics and audio equipment. The tube is manufactured by Sylvania and has a model number of 6GU7. It is a NOS (New Old Stock) tube, which means it has been sitting in storage for many years and is still in pristine condition. The country or region of manufacture is unknown, but this does not affect the functionality of the tube. This item is a great addition to any vintage electronics collection and is sure to impress any audiophile.