| Year | 1957 |
| Date | 01-Aug |
| Volume | 117 |
| Issue | 2,932 |
| Page | 152 |
| Category | Educational |
| Part | |
| Title | Model Engineers at School |
| Author | Norman Pensam |
| Notes | Norton Secondary School, Letchworth. Prime purpose, Norton Maid, worked directly from drawings, raising the standard, a public appearance, "I was told that all new boilers prime" |