Signalling Control Diagram, Wrexham
- PART OF:
- Four signalling control diagrams
- Made:
- 1946
Signalling control diagram, 1946, with 1955 revisions, Wrexham.
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 2002-7350/2
Signalling control diagram, 1946, with 1955 revisions, Wrexham.