Key Information
Reference code
K/PP107/11/1/7
Title
Telegraph transmitter, [1850-1875]
Date(s)
- [1850 - 1875] (Creation)
Level of description
Item
Extent
1 item
Scope and content
Prototype telegraph transmitter with 30 keys each representing a letter or number and operating a make and break contact sending pulses of current down the line to a receiver. Thirty unmarked ivory concertina style keys on a round mahogany base and octagonal mahogany lid.