This sheet is the first sheet made in Upper Decks long line of Commemorative Sheets. This was released at the National Candy Wholesalers Exposition in Washington D.C. on July 27th-29th 1989. Pictured on the sheet is Ken Griffey Jr. Rookie, Mark McGwire, Todd Zeile, Junior Felix, Barry Larkin and Todd Benzinger. They made 12,000 of these sheets and it represents the start of Upper Deck Baseball!