Technical drawing numbers
S312/1Record of amendments
S312/2Locking sketch
S312/3Mechanical locking table
S312/4Detection table
S312/5Electrical control table
S312/6Dog chart
S312/7Lever leads
S312/12Signal box diagram

‹‹UP  Click below to move to adjacent box  
Little Somerford  ——  This box   ——   

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 - Section B'. For availability and ordering information, click on the image below.

This page last updated on 8th February 2010.