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30th March 1964
Pressed Steel single car W55034 in Treherbert station after arriving on the 12:21 from Bridgend on Monday 30 March 1964. Stuart Mackay Collection.

24th September 1988
Class 121 55025 in Paddington station with a Greenford service on 24 September 1988. Stuart Mackay Collection.

circa May 1988
Class 121 L130, attached to another, on a Reading service in platform 5 of Basingstoke station. The slide process date was May 1988. Stuart Mackay Collection.

7th July 1979
Class 121 W55032 attached to a three-car set, likely a 117 judging by the roof vents, in Bristol Temple Meads on 7 July 1979. Michael Mensing.

April 1988
Class 121 W55026 heads away from the camera at Carbis Bay on the St Ives branch sometime in April 1988. Stuart Mackay Collection.
Summary
Description
Diagrams & Works Photos
Numbering & Driving Inst.
Liveries
Data Panels
Operations
Non-Passenger Use
Images
Details about the preserved Class 121 vehicles can be found here.