Wow! Within this unopened box of 1960’s chocolate-flavored freezing mix is a baseball coin that could be the likes of Mantle, Mays, Koufax, or endless other HOFers. The advertisement on front tells the purchaser the coin is inside! One of only a handful of unopened packages known to exist, because who on earth would hold onto an unopened package of freezing mix for over 60 years?!