| Year | 1914 |
| Date | 14-May |
| Volume | 30 |
| Issue | 681 |
| Page | 467 |
| Category | Workshop |
| Part | 3 |
| Title | Notes on Model Air Compressors |
| Author | Herbert Addison |
| Notes | Inverted plan & section of cylinder, demonstrating methods of machining piston & ring, arrangement of vertical air-cooled air compressor |