Telegraph Block Instrument, Tyers Train Describer
Permissive block instrument, Great Western/London & North Western Joint Line
Tyers Train Describer, North British Railway
Telegraph block instrument, South Eastern Railway
circa 1905
Telegraph block instrument (sending)
Block instrument (sending/receiving) - Caledonian Railway
Block instrument (sending/receiving)
Cooke's train signalling instrument of 1845, Norfolk Railway
1845
Single-needle block instrument
1845
Specimen of First Telegraph Line, 1837
1837
British Railways Detonator Tin
Telegraph block instrument
Telegraph block instrument (sending/receiving)
Reversible line indicator
Telegraph block instrument (sending and receiving)
Telegraph block instrument; "Niddrie North"; made by W R Sykes Interlocking Signal Co Ltd
Telegraph block instrument, early Walker's type
Signalling instrument
Telegraph block instrument; G. K. Winter/J. Craik (Patents: 1880/1885)
Webb & Thompson Train Staff Instrument
Train staff and ticket box, Gipsy Lane
Train staff apparatus, Randle Junction - Rainford Junction
Wise's Patent Train Staff
1886
Telegraph block instrument (sending and receiving)
Exploded Duplex Detonator
Railway signalling bell by Siemens and Halske
Signal Block Bell, South Eastern Railway
1862
Telegraph block instrumet; "Niddrie North Junction"; made by W R Sykes Interlocking Signal Co
Clark's block signalling telegraph instrument, 1854
1854
Train Describer, 1880-1920
1880-1920
Signalling instrument
Block instrument (sending)
Telegraph block instrument; Walker's
1865
Block instrument (sending/receiving)
Station bay indicator
Block instrument (lock and block)
1897
Spagnoletti intermediate signalling instrument
1885
Two-plunger block instrument pattern 288
Block instrument
Block instrument (permissive indicating)
Single-line instrument (sending/receiving)
Telegraph block instrument; GNR. Sykes 2-needle 3-position absolute pegging/non-pegging instrument
Telegraph block instrument in green metal case
Telegraph block instrument; Walker's type
Telegraph block instrument; 3-position single-needle
Telegraph block instrument; South Eastern Railway; Walker's patent No. 245
1855
Telegraph block instrument, Preece's type
Telegraph instrument; single needle
