55020 (L120), 55031 (L131) & Class 117 L402 (51377, 59487 & 51335) run along the down relief line at Waltham St Lawrence on 2 June 1989 with the 2F24 08:35 Paddington to Reading Network SouthEast service. This was obviously a morning for Class 121/117 combinations, as a little earlier 55024 & L401 had passed by in the other direction.