![](https://coimages.sciencemuseumgroup.org.uk/41/177/large_thumbnail_1975_0359__0001_.jpg)
Telephony Object
- Made:
- unknown place
![Telephony Object](https://coimages.sciencemuseumgroup.org.uk/480/250/medium_smg00250771.jpg)
Two high frequency, air-spaced, copper-shiethed objects relating to telephony/telegraphy.
Details
- Category:
- Telecommunications
- Object Number:
- YINH559
- Materials:
- copper (metal), paper (fibre product) and metal (unknown)
- Measurements:
-
overall: 32 mm x 300 mm x 52 mm,
- type:
- telephony cable