![](https://coimages.sciencemuseumgroup.org.uk/41/177/large_thumbnail_1975_0359__0001_.jpg)
Type GF Telephone Relays
- Made:
- 1915-1925 in United Kingdom
![Type GF Telephone Relays](https://coimages.sciencemuseumgroup.org.uk/477/448/medium_smg00246896.jpg)
Type GF telephone relays in case, made by S. G. Brown Ltd, London.
Details
- Category:
- Telecommunications
- Object Number:
- Y1974.34.112
- Materials:
- wood (unidentified), copper (metal), metal (unknown) and fabric
- Measurements:
-
overall: 117 mm x 231 mm x 165 mm,
- type:
- relay
- credit:
- Purchased from Gordon S. Fowler