To get this started, I'll give a short history as I remember it, which may be incorrect and I would welcome more information/corrections.   I believe the first model was the Black 5 (GP5), which came with some strange 4 wheel coaches. This was followed by a 'Merchant Navy' (I read this is undersized and nearer to a West Country), a 'King' and a 'Prairie' tank. There were 2 series of wagons in dark brown, bauxite and grey - Van, 7 plank and steel minerals and a brake van and later 1, 3 and 5 pl