Details
- TitleCopy drawings of light indicator with bell and switch and signal repeater circuits
- ReferenceUK0108 NAEST 069/2/317
- Date1937, 1950, 1960
- Scope and ContentThese are LNER drawings, with 3 small diagrams relating to the light indicator by Walters Electrical
- Physical descriptionNumber of pieces: 5
- LanguageEnglish.
- Persons keyword
- Subject
- Conditions governing accessOpen
- Level of descriptionfile
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