Telegraphic Block Instrument
- Made:
- London
Telegraphic block instrument, Tyer's No. 6 train tablet apparatus, by Tyer & Co. Ltd, London.
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 2001-7981
- Materials:
- metal (unknown), paint and wood (unidentified)
- type:
- block instrument
