I know about the 4 sub coach being scrapped but, being born in the 1990's, this was before my time. I also know about the LSWR ambulance coach from Bicester but, from what I can remember, this moved to NRM basically to mark 100 years or so since WW1 and to represent the role of the railways at war time. The coach I am talking about was neither of these. This coach was painted in LSWR salmon and brown (which I believe is a slightly incorrect shade at least that is what Southern Email Group described) along with the tri composite brake coach which is still at the NRM. There are no photographs of it anymore on the internet but it was definitely there. Cheers for now.