Superman Vintage Canadian 7Up Coaster Promo

This is a MINT unused/uncirculated Coaster from the 1970's 7UP Promotion that used Superman on its products. The promotion was only done in Canada. I belive it ended in 1979. A small amount of these coasters made thier way to us from a case that was just recently opened in a Canada last week. It has been in cool dry storage the last 32 years!! These coasters are in case fresh mint condition!