| seen by (13) | | location | date |
---|
| Lorenzo B. | | Muot | Sep 18, 2020 |
| Philip Rasch | | Punt Muragl Staz | Aug 26, 2020 |
| Holger.LDE | | Berguen | Aug 10, 2020 |
| Fabio Miotto | | Berguen | Aug 10, 2020 |
| Davide Galli | | Solis Viaduct | Aug 5, 2020 |
| chrisschumny | | Preda | Aug 3, 2020 |
| Smets Philippe | | Fideris | Aug 15, 2019 |
| Derglarner | | Reichenau-Tamins | Jun 2, 2017 |
| Frank Andiver | | Samedan Airport | Oct 31, 2014 |
| Massimo Zuccotti | | Samedan | Dec 27, 2011 |
| Damiano Piovanelli | | Bever | Dec 8, 2011 |
| Willem J. Steen | | Filisur Bahnhof | May 20, 2009 |
| Dave Edmondston | | Landwasser Viaduct | Jun 22, 2007 |