There are at least 7 groups with the name 'Core'.
These are photos from concerts where Core played, so they may be of other bands that played the concert as well.
Fu Manchu / Clutch / Core / Orange 9mm Jul 31, 1996 Omaha, Nebraska, United States Uploaded by Isaaciris
Clutch / Fu Manchu / Orange 9mm / Core Jul 25, 1996 Chicago, Illinois, United States Uploaded by Pathological Mastermind