Grateful Dead Concert Poster Oakland Coliseum 1988 BGP-31. Grateful Dead Concert Poster. Peter Apfelbaum and the Hieroglyphics Ensemble. Designer: Arlene Owseichik and Ken Friedman. 13? X 19.5? Soft bottom left corner. Price based on condition. At visiblevibrations, we only sell ORIGINAL Concert Posters, Art Prints, Music Memorabilia and Limited Edition Art Toys!