![](https://coimages.sciencemuseumgroup.org.uk/425/877/large_thumbnail_1994_8783__0010_.jpg)
Switch-out block instrument
![Switch-out block instrument](https://coimages.sciencemuseumgroup.org.uk/535/40/small_thumbnail_smg00358196.jpg)
![Switch-out block instrument](https://coimages.sciencemuseumgroup.org.uk/425/853/small_thumbnail_1994_8763__0005_.jpg)
![Switch-out block instrument](https://coimages.sciencemuseumgroup.org.uk/425/852/small_thumbnail_1994_8763__0001_.jpg)
![Switch-out block instrument](https://coimages.sciencemuseumgroup.org.uk/425/854/small_thumbnail_1994_8763__0006_.jpg)
Block instrument; BR/M (LNWR Style) switch-out box, for severing block section on closure of signalbox. Its switch-out handle (electroplated) is mounted on the front with trafolite-plates above: "Open" / "Closed" on LHS/RHS respectively. Unmarked, probably Tyer & Co. Ltd.
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 1994-8763
- type:
- block instrument
- credit:
- British Rail, Clapham