Pennine MC
Western Thunderer
. If 1M06 and 1M18 are for services in the same WTT then the Chester arrival must have been a very early departure from PDN.
Thinking on, that 1M06 was a Bradford Barton caption Although it was Mk1 stock, it could have been the early morning Leamington - Birkenhead working, which I think might have been included in the Western diagrams.