Theiler's step by step type receiver, 1863-64
- Made:
- 1863-1864
Theiler's step by step type receiver, 1863-64
Details
- Category:
- Telecommunications
- Object Number:
- 1876-1306
- type:
- receiver
- credit:
- H.M. Postmaster General
Theiler's step by step type receiver, 1863-64