Telephone dial or impulse sender
Telephone dial or impulse sender, marked with letters and numerals, in plastic stand c.1980
Details
- Category:
- Telecommunications
- Object Number:
- 2014-485
- Materials:
- metal (unknown) and plastic (unidentified)
- Measurements:
-
overall: 35 mm x 80 mm, 0.15 kg (weight estimate)
- type:
- telephones
- credit:
- British Telecom Circuit Laboratory