Promo Signed by Coop. At: The Forum, Inglewood CA. Obtained directly from Goldenvoice/Avalon productions. These were the few posters that actually went to the show for advertisement. Hand signed bottom right border in pencil by Coop. Signed “Promo” on left. 17.5 x 22.5 inches in size. Actual photo of reverse to help you see condition. Pin Holes, some bending in the core, clean edges save a few minor dings. Hard to see from front. Bright white, rich color, no yellowing. The item “Nirvana Concert POSTER Butthole Surfers Tad Original Promo Signed by Coop Rare” is in sale since Sunday, October 27, 2019. This item is in the category “Entertainment Memorabilia\Music Memorabilia\Rock & Pop\Artists N\Nirvana\Posters”. The seller is “posterxchange” and is located in Long Beach, California. This item can be shipped worldwide.