Technical drawing numbers
S2438/1Record of amendments
S2438/2Locking sketch
S2438/3Mechanical locking table
S2438/4Detection table
S2438/5Electrical control table
S2438/6Dog chart
S2438/7Lever leads
S2438/12Signal box diagram

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Thornwood  ——  This box   ——  Caldicot Junction

The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on a CD-ROM entitled 'Great Western Railway Signal Box Diagrams - South Wales'. For availability and ordering information, click on the image below.

This page last updated on 8th October 2010.