L428 (51366, 59518, 51408) passes Hallen Marsh Junction on 15 August 1987 with the 18:37 Severn Beach to Bristol Temple Meads service. Of course this is nowhere near the area covered by Network SouthEast at the time, and so this livery is totally out of place here. However, careful inspection of the original 6x7 transparency reveals the L in the set number is painted over the top of a B, indicating a former Bristol allocation. Therefore in its days as a blue and grey unit, it may well have passed this way before. A three car unit is not often justified on this line and indeed the more usual Class 121 single unit was also running on this day. Unfortunately the mass of semaphore signals at this location has long since been removed.