Block instrument, rotary non-pegging with line-clear-cancel button, Midland Railway (and LMS), dated 1899.
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 2001-7066
- type:
- block instrument
- credit:
- Cooke, Margery
Block instrument, rotary non-pegging with line-clear-cancel button, Midland Railway (and LMS), dated 1899.