Yebbut I don't see any coach numbers for the vehicles, thereby identifying it (this being in the days before they made it easy by putting the 'set' numbers on the front).
Lot No. Diagram Car Type Qty Fleet numbers Notes
30533 602 Driving Motor Brake Third (DMBS) 25
51681–51705 Class 112
30534 603 Driving Motor Composite with lavatory (DMCL) 25
51706–51730 Class 112
30535 604 Driving Motor Brake Third (DMBS) 25
51731–51755 Class 113
30536 605 Driving Motor Composite with lavatory (DMCL) 25
51756–51780 Class 113
None of the other numbers on the front actually refer to it's identity.
Anyway, sorry about this folks.... Classic, stop being a pedant!