| Clue | Source | Date |
|---|---|---|
| Climbing aid for the Dark Knight | Universal | 10 Feb 2023 |
| Way to get up in Gotham | The Washington Post | 08 Sep 2018 |
| Way to get up in Gotham | LA Times Daily | 08 Sep 2018 |
| Way to get up in Gotham | ||
| Gotham building-climbing tool | New York Times | 15 Apr 2016 |
| Rappelling aid in DC Comics | The Chronicle of Higher Education | 04 Sep 2015 |
| Rappelling aid in DC Comics | ||
| Item on a Gotham utility belt |