I obtained this Royal Chester from an inheritance from my grandfather. He has built 4 of them and this would remain in the family. Although I love it, I am not a fan. That is why we have decided to sell it to a true enthusiast. There is no boiler certificate available (only the boiler number) but it has never fired up. An expert was very pleased with the quality of this machine. This model is also 100% working. If you are interested you can contact me. The link brings you to the photos and a movie on which he can be seen working.
https://photos.app.goo.gl/yVm9LHiMPbwc2o8C7