An interesting DMU combination at Waltham St Lawrence on 8 April 1990, comprising three Class 121, and three Class 117 vehicles. 55029 (L129) leads the ensemble, followed by an unidentified Class 121 trailer, 55027 (L127), and with Class 117 L428 (51366, 59518, 51408) bringing up the rear. The train is the 2F29 09:40 Paddington to Reading Network SouthEast service.