I was at Ealing Broadway around 3 this afternoon. I was waiting for a class 60 to pass. To my surprise, I heard that splattering noise. I looked up and it was a tractor, of course with some serious clag! BR livered 37425, a black 67, an EWS 66, a BR MK1 saloon coach and EWS livered 37419 at the rear! Anybody know what it was up to and where it was going?