BLACKBIRD EDITION 6-23-88 ALPINE VALLEY SIGNED AND NUMBERED. The item "Grateful dead poster signed" is in sale since Friday, August 31, 2018. This item is in the category "Entertainment Memorabilia\Music Memorabilia\Rock & Pop\Artists G\Grateful Dead\Posters". The seller is "lizs-2" and is located in Chicago, Illinois. This item can be shipped to United States.