Motorhead / Ozzy Osbourne heavy metal holocaust

very rare 1981 heavy metal holocaust tour shirt. it`s a crazy story and you can check it out on the internet. this show was suppose to be motorhesd & black sabbath. but, sabbath had other commitments. so, they replaced sabbath with ozzy osbourne. this was start of the blizzard of ozz tour. i had the ticket stub that is worth money, but lost it when i moved last year. thisb is a 1 of a kind shirt, there are no others in existence. this is about the rarest shirt, i own ?