| Technical drawing numbers | |
| S3270/1 | Record of amendments |
| S3270/2 | Locking sketch circa 1913 |
| S3270/3 | Mechanical locking table |
| S3270/4 | Detection table |
| S3270/5 | Electrical control table |
| S3270/6 | Dog chart |
| S3270/7 | Lever leads |
| S3270/12 | Box diagram |
| ‹‹UP Click below to move to adjacent box DOWN›› | ||
| Llandderfel | —— This box —— | Bala Llanuwchllyn |
The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file has been published on CD-ROM (GW Sections T, U & W). The diagram itself has not changed (other documentation may have been added or the diagram renumbered or paired) since publication.
For availability and ordering information, click on the image below.
This page last updated on 12th October 2010.