There are at least three bands called Osmium.
These are photos from concerts where Osmium played, so they may be of other bands that played the concert as well.
Osmium / Nightlord / Quad / Winter Of Torment Oct 20, 1992 London, England, United Kingdom Uploaded by Kapt Kopter Credit: Steve Gray
Boneyard / Osmium / Joyride Sep 14, 1991 London, Charing Cross Road Uploaded by Kapt Kopter Credit: Steve Gray
