| Year | 1925 |
| Date | 24-Dec |
| Volume | 53 |
| Issue | 1,287 |
| Page | 820 |
| Category | Domestic Engineering |
| Part | 2 |
| Title | Practical Private Telephone Installations at Low Cost |
| Author | B.Clements Henry |
| Notes | Installation Systems. Two stations with battery, six-station arrangement ringing one-way only, telephones connected to existing indicator installation, bell indicator connections, with telephone added |