Full Case of GB GE F36W/BLUE Fluorescent Tubes

This was a case of tubes I really wanted tp have since the start of the trade because I was secretly hoping that somehow they would be made in Hungary but it turned out that they were made in Great Britain. Now I have been made aware that indeed these tubes are super rare so I am very thankful that Jonathan grabbed these tubes for me. Although this case costed me alone 80 pounds, I can see why it has been so beaten up over time since nobody wanted to buy such expensive tubes. The case is really beaten up but at least the factory sticker is still intact which for me is the most important thing when collecting cases. If anyone could date me these tubes, please do, I appreciate that very much!