| Model ID | Autograph |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 109.2 × 148.6 × 67.3 cm (W × H × D) |
| Frequency Response | 30Hz-17kHz ±3dB |
| Driver | 15" Dual Concentric (FIFTEEN [Monitor Silver]) (AlNiCo (Ticonal-3) Magnet, PepperPot Waveguide) |
| Impedance (Nominal) | 16Ω |
| Conversion Efficiency | >20% |
| Power Handling (RMS) | 25W |
| Power Handling (Peak) | 50W |
| Crossover Frequency | 200Hz (Acoustic), 1kHz |
| Polar Distribution (60°) | -4dB at 10kHz |
| Enclosure Type | Compound Horn |
| Finish | Mahogany, Walnut, Oak |
| MSRP (1953) | £131 5s |
| Connections | |
| Links | Driver: Tannoy FIFTEEN (15" Monitor Silver) |
| Notes | Very first generation of the Guy R. Fountain Autograph enclosure. Only a few dozen examples made and saw limited sales through select distributors such as Rimington Van Wyck Ltd. |