No formation details found.
A Class 128 parcels car at Stratford-upon-Avon in 1965. The photographer notes "This area had just been transferred from the WR to the LMR & all the MUs had a green patch where the "W" had been replaced with a "M". Note the P2 set number in the cab window, meaning this is likely to be 55994. Malcolm Clements.
Do you have any images of the set you can add?