| Year | 1993 |
| Date | 05-Mar |
| Volume | 170 |
| Issue | 3,940 |
| Page | 268 |
| Category | Exhibition |
| Part | |
| Title | 62nd International Model Engineer and Modelling Exhibition. Class A1 (Hot Air Engines) |
| Author | David C.Ayers |
| Notes | Alpha Stirling Engine by Robbie Robbins, Cyril Dennis's Denny's Improved Ericcson hot air engine |