All the tubes are NOS and the offer is as advertised. This stock was bought from a local store that operated in South Africa and went out of business. All boxed tubes have not been opened to preserve the tube as well as the packaging. Tubes that are singles or were not in packaging were tested and they were found to be NOS and Never been used, Tested very well on emission and Microphonics, Once again, like new. All tubes are tested, if you require a test to be done please notify me and I can provide the image/video of the test being performed on said tube.All vintage vacuum tubes are packaged very carefully and with extra material so the tubes do not break in transition.