| Year | 1926 |
| Date | 04-Feb |
| Volume | 54 |
| Issue | 1,293 |
| Page | 140 |
| Category | Light Engineering Equipment and Supplies |
| Part | |
| Title | The "Sifam" Series of volt and Ammeters (E.H.Appleby) |
| Author | |
| Notes | Double scale pocket form voltmeter, double scale moving coil voltmeter |