Inter-Communication Switch, with Jacks, Plug and Cord, for Metallic Lines.Inter-Communication Switch, with Jacks, Plug and Cord, for Metallic Lines.
No. 780 shown
| Catalogue Number | 780 | 781 | 782 | 783 |
| Number of Lines | 30 | 40 | 50 | 60 |
| Height in Inches | 9.2 | 10 | 10.8 | 12 |
| Width in Inches | 8.4 | 8.4 | 8.4 | 8.4 |
| Weight in Lbs | 5.3 | 6.4 | 7.3 | 8.4 |
| PRICE | £3 12 0 | £4 50 | £4 18 0 | £5 11 0 |
Taken from the Ericsson Telephone Catalogue 1903
| Home page | BT/GPO Telephones | Ericsson Telephones | Ericsson Home Page | Ericsson PABX | All Telephone Systems |