Midland Red running cards were full of old information and instructions like that. I remember one 144 Malvern journey from Digbeth where the running card instructed to "Await Bristol Blue service at Malvern Link Station". Now Bristol buses hadn't been blue since...WW2 anyway (motorman mike will know), but sure enough as we approached the former GWR station at Malvern Link, A (green) Bristol Omnibus Service Co Bristol "RE" type single decker was parked in the yard.
Now, the M types picture above. I've been studying and enlarging my copy of the photo, I've never been convinced of the location - supposedly Market Square, Bicester - and I'm still not. The Oxford Motor Services AEC Regent (EWL 750 is noted by me on the back of my copy, but it could be 730 or 760 when enlarged) is displaying route 99, "to Bicester via Bucknell, Fritwell, Aynho" suggesting the route started in Banbury. But why 3 Midland Reds in Bicester, hardly a main centre of their operation? Diligent searching of Google streetscene shows nothing that looks like the background buildings, anywhere along the route; nor can I find any reference to "Needles Fish Restaurant" (or Saloon, as the smaller notice says), and checking all the 'Needle/s" in Oxfordshire, and properties around Bicester Market Square in the 1911 census draws a blank too. It might be Bicester, it might not. Discuss.
Edit: just noticed HA 4918 on the left is displaying (very faintly) route number stencils for "486". Can anyone look up that route no. in an old Ian Allan ref please?
The rear-facing M type is HA 4929 (A989, SOS M 1087, BB1305) by the way.