Not a shark, but a pilot whale (from the faroe islands), also with some well visible squid sucker scars, which are where the 66 sign was cut:
http://www.taz.de/picture/94429/948/01.09.Grindwal_Da__nemark_imago.jpg
http://www.taz.de/picture/94429/948/01.09.Grindwal_Da__nemark_imago.jpg