| seen by (10) | | location | date |
|---|
 | Davide Maggi |  | Bever | Sep 29, 2023 |
 | Javier Hervás | | Bonaduz | May 17, 2022 |
 | Lorenzo B. | | Bever | Jul 23, 2021 |
 | Holger.LDE | | Berguen | Aug 10, 2020 |
 | chrisschumny | | Berguen | Aug 3, 2020 |
 | Luca Xavier Bozzo | | Hinterrhein Bridge | Jun 13, 2013 |
| Dave Edmondston | | Filisur Bahnhof | Jan 8, 2012 |
| Massimo Zuccotti | | Bever | Nov 1, 2011 |
 | Willem J. Steen | | Filisur Bahnhof | May 22, 2009 |
 | Chris Walters | | Filisur Bahnhof | Dec 24, 2008 |
