Interior of signal box at Ealing Common showing new mini- lever signal frame with staff member. Date and time of 5.20am etched onto neg. Part of a 4-day series recording the conversion of signalling and points to electricity. Unfortunatly the signal mans name is not known at this stage.
The frame is a Westinghouse Style 'B' Power Frame and was mechanically interlocked between levers with electrical lever locking, The frame was formed of 2 x 8 way sections, which making a total of 16 levers,