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Single-needle block instrument

1845

Block instrument (sending/receiving)

Block instrument (sending/receiving) - Caledonian Railway

Clark's block signalling telegraph instrument, 1854

1854

Intermediate block instrument

Block instrument (sending/receiving)

Block instrument (permissive indicating)

Block instrument (lock and block)

1897

Two-plunger block instrument pattern 288

Block instrument (sending)

Block instrument (sending/receiving)

Block instrument

Block instrument, Great Central Railway (sending)

Telegraph Block Instrument, Spagnoletti type

Three-wire block instrument

Tyer's One-Wire Three Indication Block Instrument

Block instrument with spagnoletti flag indicator (incomplete); GWR. Tyer's style

Single-needle telegraph block instrument

Train describer (receiving)

Train describer (receiving) Great Western Railway

Lock & Block Type Telegraph Block Instrument

Telegraph Block Instrument; Tyers Patent; 2-position type

London & North Eastern Railway train describer

1923-1948

Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co

Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co

Telegraph Block Instrument, Markham North

Lancashire & Yorkshire Railway Signalling School Model Railway Layout

1912

Telegraph Block Instrument, Great Western Railway

Switch-out block instrument

Block instrument (sending)

Telegraph block instrument

Siemens Bros. block

Block instrument by J.R. Spagnoletti and Crooks; GNR

Tyers Type Signalling Block Instrument

Block instrument (sending/receiving)

Train describer, London & North Eastern Railway

1923-1948

Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co

Lock and Block Type Block Instrument

Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co

Telegraph Block Instrument, North Eastern Railway, 3 position, pegging type, sending, ex Redmarshall Station. Overall: 485 mm x 216 mm x 278 mm.

Telegraph Block Instrument, North Eastern Railway

Block instrument, rotary non-pegging with line-clear-cancel button, Midland Railway (and LMS), dated 1899.

Block instrument

1899

Telegraph block instrument: Midland Railway; 1913; rotary Pegging block type; Sending

Telegraph block instrument, Midland Railway

Telegrah block instrument, Lancashire & Yorkshire Railway, 3 position type, complete with tapper

Telegraph block instrument, Lancashire & Yorkshire Railway

Block Instrument, (permissive - co -operative) used to allow more than one train to opertate in a section. This example controles the goods loop between box A and Box B . Located on model railway layout, gauge 1, Lancashire & Yorkshire Railway Signalling School, built 1912, by L&YR and Bassett-Lowke Ltd, with associated equipment

Lancashire & Yorkshire Railway Signalling School Model Railway Layout

1912

Block Instrument box B, LNWR 'Fletchers' or 'Tombestone' design. Wooden case, brass fittings and integral bell. Located on model railway layout, gauge 1, Lancashire & Yorkshire Railway Signalling School, built 1912, by L&YR and Bassett-Lowke Ltd, with associated equipment

Lancashire & Yorkshire Railway Signalling School Model Railway Layout

1912

Telegraph block instrument, Cooke & Wheatstone double needle type, c. 1837, Great Western Railway, From Brent, (this instrument was exhibited at the Darlington Centenary Exhibition in 1925).

Great Western Railway Double Needle Type Block Instrument

1837

Telegraph Block Instrument; Tyers patent

Telegraph block instrument, Tyers patent

Block instrument; Great Western/London & North Western Joint Line. Train describer, routeing-sending, 2-needle with LHS-assembly (3-position/2-indication "For Shrewsbury Line/Worcester") and RHS-assembly (3-position/1-indication "Barrs Court/Blank"), underneath which is a peg/chain-arrangement whereby the route can be transmitted. Ex. Shrewsbury and Hereford Joint Line.

Train describer (sending)

Block Instrument, London Brighton & South Coast Railway, Sykes Intermediate block instrument, ex Beddington (Surrey), c. 1890.

block instrument from London, Brighton & South Coast Railway

1890

Early form of block instrument 1855-61.

Early form of block instrument