Block instrument (lock and block)
1897
Telegraph block instrument
Signal Block Bell, South Eastern Railway
1862
Train staff and ticket box
Wise's Patent Train Staff
1886
Five-needle train signalling instrument used on the London and Blackwall Railway
1840
Telegraph block instrument; 3-position single-needle
British Railways Detonator Tin
Telegraph block instrument (sending), Great Northern Railway
Exploded Duplex Detonator
Clark's block signalling telegraph instrument, 1854
1854
Block instrument (permissive indicating)
Telegraph instrument; single needle
Telegraph block instrument
Telegraph Block Instrument, Tyers Train Describer
Telegraph block instrument; Walker's
1865
Specimen of First Telegraph Line, 1837
1837
Cooke's train signalling instrument of 1845, Norfolk Railway
1845
Station bay indicator
Telegraph block instrument, Great Eastern Railway
Telegraph block instrument, South Eastern Railway
circa 1905
Telegraph block instrument; South Eastern Railway; Walker's patent No. 245
1855
Telegraph block instrument; "Niddrie North"; made by W R Sykes Interlocking Signal Co Ltd
Signalling instrument
Tyers Train Describer, North British Railway
Telegraph block instrument (sending and receiving)
Single-needle block instrument
1845
Telegraph block instrument (sending)
Train Describer, 1880-1920
1880-1920
Two-plunger block instrument pattern 288
Telegraph block instrument, early Walker's type
Telegraph block instrument; Walker's type
Signalling instrument
Telegraph block instrumet; "Niddrie North Junction"; made by W R Sykes Interlocking Signal Co
Telegraph block instrument (sending and receiving)
Signal relay box
Reversible line indicator
Pair of climbers for climbing telegraph poles
1948
Telegraph block instrument, Preece's type
Signalling instrument
Great North of Scotland Railway Detonator Box
Block instrument
Telegraph block instrument in green metal case
Telegraph block instrument (sending)
Double needle telegraph instrument
Intermediate block instrument
Block instrument (sending)
Spagnoletti intermediate signalling instrument
1885
