| Clue | Source | Date |
|---|---|---|
| 'X-Men' device | Wall Street Journal | 11 Jan 2023 |
| Brain-enhancing device used by Professor X | New York Times | 18 Mar 2021 |
| Brain-wave-amplifying device in 'X-Men' | New York Times | 15 Jun 2019 |
| Brain-wave-amplifying device in "X-Men" | ||
| Professor X's mutant-finding device in "X-Men" | The New Yorker | 28 May 2018 |
| Device Professor X wears over his head in "X-Men" | ||
| Mutant-finding machine in "X-Men" |