There is more than one band with this name:
These are photos from concerts where Pentagram played, so they may be of other bands that played the concert as well.
The Roller / Outlaw Order / Wolves In the Throne Room / Minsk / Pentagram / Nachtmystium Jul 9, 2009 Austin, Texas, United States Uploaded by Jeffrey Lee
Pentagram / Nachtmystium / Danava / Witch Mountain Jul 1, 2009 Portland, Oregon, United States Uploaded by Terabyte23