Single-needle telegraph
Single-needle telegraph, Branly collection. Other numbers are A174974 and B3350.
Single-needle telegraph, dial marked ‘General Post Office’ with one ivory stop missing.
Details
- Category:
- Telecommunications
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A174974
- type:
- needle
- credit:
- Wellcome Collection
