Sound Sales Ltd.
Added by jpvanson
Manufacturer 2
| Title | Function | Dates_produced | |
|---|---|---|---|
 | Tri-Channel Mk. 4 | Speaker | 195?-1957 |
 | Tri-Channel Mk. 4 (Rev. 2) | Speaker | 1958 |
| Title | Function | Dates_produced | |
|---|---|---|---|
| Tri-Channel Mk. 4 | Speaker | 195?-1957 |
| Tri-Channel Mk. 4 (Rev. 2) | Speaker | 1958 |