![](https://coimages.sciencemuseumgroup.org.uk/59/654/large_thumbnail_1970_0075__0004_.jpg)
Two screws from a portion of first underground cable laid in London
![Two screws from a portion of first underground cable laid in](https://coimages.sciencemuseumgroup.org.uk/468/493/medium_smg00238873.jpg)
Two screws from a portion of first underground cable laid in London, unknown maker, London, United Kingdom, 1844-1923. In crystal box
Details
- Category:
- Telecommunications
- Object Number:
- 1923-239/3
- Materials:
- brass (copper, zinc alloy)
- type:
- cable
- credit:
- Institution of Electrical Engineers