| Year | 2004 |
| Date | 30-Apr |
| Volume | 192 |
| Issue | 4,220 |
| Page | 485 |
| Category | Smoke Rings |
| Part | |
| Title | Exceptional auction (Christies') |
| Author | Editors |
| Notes | Gnome rotary engine to Les Chenery's design, 14-cylinder development by Vernal Engineering, Miguel de Rancougne Collection |