Arnold, Thank you for your comments, I have to say that I didn't build the boiler it is a steel boiler and the regulations are strict in the UK regarding steel boilers, they have to be welded by a Coded welder and all steel in it's construction has to have documentation paper work so the boiler is a professional build.
The engine is a easy steamer, powerful but nice to drive.
Michael.
Thank you for replay - I know the Boiler's need official proof - I have two Burrells 3" and 4 1/2"
and a Foster 4". I bought them in working order long time ago and make only Service and Repair.