This is Isle of Man Railway Beyer Peacock 2-4-0T 'Mannin' which is about to be restored to running order so that it can deal with the heavier trains on the line as at present only Dubs 0-6-0T 'Caledonia' is a capable of such trains unaided. Its a beefed up version of the earlier smaller 3 foot gauge engines that Beyer Peacock provided for the IMR in the late 19th / early 20th centuries. Although it has completely different frames, outside cylinders and a smaller bunker it has obvious 'house similarities' to the E&WJR 2-4-0Ts. IMR 2-4-0T 'Loch' which is in store still retains a bell mouth style dome as the E&WJR engines originally had .
Incidentally I can thoroughly recommend the IMR and its electric tramway cousins the Manx Electric Railway and Snaefell Mountain Railway as being first rate rail experiences.