Set of telephone apparatus, patented by Mr A. A. Campbell Swinton in 1885 (constructed in 1887)
Details
- Category:
- Telecommunications
- Object Number:
- 1916-51
- type:
- telephone apparatus
- credit:
- Swinton, Mr. A.A. Cambell
Set of telephone apparatus, patented by Mr A. A. Campbell Swinton in 1885 (constructed in 1887)