| Clue | Source | Date |
|---|---|---|
| Units of pressure | The Telegraph Cross Atlantic | 25 Feb 2026 |
| Pressure units | Premier Sunday | 01 Mar 2020 |
| Pressure units | The Times Concise | 20 Jan 2020 |
| Units of pressure | ||
| Units of pressure | LA Times Daily | 27 Jan 2018 |
| Units of pressure | ||
| Pressure units |