1973 Sly And The Family Stone, at Berkeley Community Theater Original Concert Poster Tribune Showprint. This is an original boxing style broadside printed on cardstock by Tribune Showprint Inc. Earl Park IND as noted along the bottom. It is 14? X 22? Featuring a great Photo of Sly Stone. The poster has wear and pin holes from when it was hung and some tape marks on the back. This is a super rare poster that would be a fantastic addition to any rock memorabilia collection.