WOOLWICH ROAD Victoria Way ( Mon-Fri peaks) - WOOLWICH Parsons Hill ( Mon-Sat ) - Plumstead Common - Welling - Blackfen  -  Foots Cray - St Mary Cray - Orpington - Sevenoaks Road - GREEN STREET GREEN Rose and Crown ( Mon-Sat )
New Route

06.11.71

SP

14RT

10RT

--

CHARLTON STATION (Mon-Fri peaks) - WOOLWICH Parsons Hill ( Mon-Sat )   -   GREEN STREET GREEN Rose and Crown ( Mon-Sat )
Withdrawn between Victoria Way and Charlton Station

01.03.75	SP	15RT+	10RT	--
		1RT/228

CHARLTON STATION (Mon-Fri peaks) - WOOLWICH Parsons Hill ( Mon-Sat )   -   GREEN STREET GREEN Rose and Crown ( Mon-Sat )
Cross link with 228 introduced

16.01.77	SP	15RM+	10RM	--
		1RT/228

CHARLTON STATION (Mon-Fri peaks) - WOOLWICH Parsons Hill ( Mon-Sat )   -   GREEN STREET GREEN Rose and Crown ( Mon-Sat )
RT replaced by RM

21.05.77
Converted to OPO and renumbered 51

Garages

SP Sidcup
Crew Changeover point at Foots Cray