There are several bands named Postcards:
These are photos from concerts where Postcards played, so they may be of other bands that played the concert as well.
DKFM DreamGaze Worldwide III Jun 20, 2020 ONLINE Uploaded by Chris Rodg
Maifeld Derby 2019 Jun 14 - 16, 2019 Mannheim, Baden-Württemberg, Germany Uploaded by Phil Haubi