| Clue | Source | Date |
|---|---|---|
| Cry about a desk used to get into hotel rooms (8) | ||
| Some hotel room door openers | Universal | 16 Jul 2022 |
| Hotel door openers | Eugene Sheffer | 15 Jul 2019 |
| Front desk collection | New York Times | 12 Nov 2016 |
| Front desk collection | ||
| Hotel door openers | Thomas Joseph | 01 Apr 2015 |