| Year | 1991 |
| Date | 19-Apr |
| Volume | 166 |
| Issue | 3,895 |
| Page | 419 |
| Category | Our Front Cover |
| Part | |
| Title | Matthew Murray's Hypocycloidial engine and a Wolseley Penn engine by J.A.Cogden |
| Author | |
| Notes | Seen in the loan section at the recent M.E. Exhibition. (Photo: John Jolliffe) |