33103 and an unidentified 4TC depart Clapham Junction enroute to Kensington Olympia with one of the few 'Kenny Belle' workings. 3 services in the morning and 4 in the afternoon. See www.1S76.com for further details.
In would be another 14 months before Olympia got an all day service. Roll the clock forward to May 2011 and it will be getting 5 trains an hour in either direction.
Slide dated 30/3/85.