73041 near St.Mary Cray Junction with the 3.26pm Victoria to Margate train on 14th June 1958.
Robert Waterman says "73041 is one of the two Standard Class 5's that Stewarts Lane had just received in exchange for their two Britannias 70004 and 70014. The other was 73042. They were easily identifiable on the Kent Coast services due to having BR1A tenders (I remember noticing these at the time for that reason) rather than the BR1B variety fitted to 73080 - 86. 73087 - 89 had recently left for the Western Section".

Photo: K.L. Cook/Rail Archive Stephenson