Both the locos, and in fact most things on Unnycoombe, are referenced with regard to colour from an Atlantic book: The Colour of Steam Vol 3 Great Western Branch and Main. (ISBN 0 906899 16 8) by P.B. Whitehouse. I've had this book since I was in my late teens so it's probably out of print by now. What it does show is that during the period 1961-5, unless on top-link passenger duties most stock was pretty sooty and uncared for. It was this feel that needed to be replicated for Unnycoombe and this Prairie was influenced by a plate of 4161 exiting a tunnel near Gloucester with a three coach train; a scene not dissimilar from the arse-end of Unnycoombe.Again, I have to admit that wethering N Gauge stock is nowhere as simple as it would be in 4mm.







