"US Blues" by AJ Masthay - Psycho Sam Variant. Fine art giclee on SlickRock paper stock. Ships same (or) next day! The item "US BLUES PSYCHO SAM VARIANT AP Grateful Dead Poster Signed by AJ Masthay" is in sale since Monday, September 14, 2020. This item is in the category "Art\Art Prints".The seller is "kindgoodsdepot" and is located in Denver, Colorado. This item can be shipped worldwide.