![](https://coimages.sciencemuseumgroup.org.uk/61/690/large_thumbnail_b000394.jpg)
Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co
![Telegraph Block Instrument, Lock & Block Type, W R Sykes & Co](https://coimages.sciencemuseumgroup.org.uk/733/62/small_thumbnail_smg00455749.jpg)
![Telegraph block instrument, lock & block type, W R Sykes & Co](https://coimages.sciencemuseumgroup.org.uk/420/704/small_thumbnail_1995_7086__0002_.jpg)
![Telegraph block instrument, lock & block type, W R Sykes & Co](https://coimages.sciencemuseumgroup.org.uk/420/699/small_thumbnail_1995_7086__0004_.jpg)
![Telegraph block instrument, lock & block type, W R Sykes & Co](https://coimages.sciencemuseumgroup.org.uk/420/702/small_thumbnail_1995_7086__0009_.jpg)
![Telegraph block instrument, lock & block type, W R Sykes & Co](https://coimages.sciencemuseumgroup.org.uk/420/700/small_thumbnail_1995_7086__0007_.jpg)
Telegraph block instrument, lock & block type, W R Sykes & Co, track circuit indicator, " 43.44. To Track CCTS C F", ex West London Junction
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 1995-7086
- type:
- block instrument
- credit:
- British Rail, Clapham