Cooke's train signalling instrument of 1845, Norfolk Railway
1845
Signalling instrument
Permissive block instrument, Great Western/London & North Western Joint Line
Spagnoletti intermediate signalling instrument
1885
Signalling instrument
Great Western Railway train describer
Block Release Switch
LNER signal arm indicator
1923-1948
Signal arm indicator, Southern Railway
1923-1948
Tyers patent permissive slide release plunger
Signal arm indicator, Southern Railway
1923-1948
Dial train signalling instrument, 1844
1844
Signalling instrument
Great Western Railway train describer
Tyers Signal Repeater Indicator
Signalling Instrument, Solenoid Case
Signalling Instrument, Flag Type Station Bay Indicator
Great Western Railway Tank Indicator
1900