I have no idea the origin of this shirt. It was given to me second-hand by a friend in Norway as part of a package with a bunch of black metal goodies. I've had it for 3 or 4 years and it was used when I received it. The only time I've ever seen this print, Nergal was wearing it at a Behemoth concert on their Zos Kia Cultus tour back on March 29, 2003. I added a picture from the show for reference.