This picture is available as a high quality photo print from Dead Images.
From this show:
Grateful Dead
April 6, 1989
Crisler Arena
Ann Arbor Michicgan
Touch of Grey
Little Red Rooster
Brown Eyed Women
Mama Tried
Mexicali Blues
Althea
Masterpiece
Bird Song
Promised Land
Scarlet Begonias
Fire on the Mountain
Playin’ in the Band
Built to Last
drums
I Will Take You Home
The Other One
Wharf Rat
Around and Around
Playin’ Reprise
Brokedown Palace