The Allman Brothers Band Concert Poster Indiana Memorial Coliseum 1980 Ozark Mountain Daredevils. The Allman Brothers Band Concert Poster. The Allman Brothers Band. Size: 10? X 22? Condition: Blemished – See Image. At visiblevibrations, we only sell ORIGINAL Concert Posters, Art Prints, Music Memorabilia and Limited Edition Art Toys!