| Technical drawing numbers | |
| S2255/1 | Record of amendments | 
| S2255/2 | Locking sketch | 
| S2255/3 | Mechanical locking table | 
| S2255/4 | Detection table | 
| S2255/5 | Electrical control table | 
| S2255/6 | Dog chart | 
| S2255/7 | Lever leads | 
| S2255/12 | Signal box diagram | 
| ‹‹UP Click below to move to adjacent box DOWN›› | ||
| Llanvihangel | —— This box —— | Abergavenny North (GW South Wales)  | 
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 - North & West, Cambrian and Shrewsbury to Chester (GW in North Wales)'. For availability and ordering information, click on the image below.
This page last updated on 8th October 2010.