| Clue | Source | Date |
|---|---|---|
| Award at university on very thin paper that's needs no introduction to the publishing world - it's a collector's item | Irish Times Crosaire | 10 Jan 2022 |
| Every top graduate has one, every parent has one and every newspaper has one | Irish Times Crosaire | 22 May 2017 |
| Philatelist's collectible | ||
| Philatelist's collectible |