Technical drawing numbers
S277/1Record of amendments
S277/2Locking sketch
S277/3Mechanical locking table
S277/4Detection table
S277/5Electrical control table
S277/6Dog chart
S277/7Lever leads
S277/12Signal box diagram

‹‹UP  Click below to move to adjacent box  DOWN››
Challow  ——  This box   ——  Knighton Crossing

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.