Diesel traction on the "Golden Arrow" - diverted via Chatham because of Sunday engineering work in Sevenoaks Tunnel. The down train is diesel-hauled out of Victoria by Birmingham/Sulzer Type 3 No. D6500 and B.R./Sulzer Type 2 No. D5004 on January 28, 1961; the inner locomotive is provided to steam-heat the train.
Source: wiktionary