Cornish Riviera Express
Geoff - re your edit to Solihull - I have no doubt that you are right that the Cornish Riviera Express ran from Paddington and therefore not via Solihull. However...... as a 10 year old train-spotter, spotting from a bridge over the line just above Solihull station, we used to see Kings and Castles wearing the Cornish Riviera Express plate
hauling long passenger trains out of Snowhill. It is possible that they may be been out of service or in transit but as a 10 year old the only way that I would ever have known of such a service was to see the trains themselves. Any explanations would be very welcome.