Detroit Retro 313 is proud to offer this VERY RARE vintage 1970s poster as part or our Blackness Unlimited Collection. It is a BLACKLIGHT poster from the 70s. We rate this poster as in GREAT Condition for its age. It does have minor blemishes. Please refer to the pics. “AL Green” 1973 ONE STOP POSTERS L. This Poster Measures: 20 1/2 x 23. Blackness Unlimited are purveyers of mostly afro-centric merchandise and are caretakers of cultural artifacts relating to Detroit and Blackness. Blackness Unlimited is a proud Detroit Company since 1969 (post riot). Detroit Retro 313 is a Proud Of Detroit Company. Detroit Retro 313 has a sister store named Detroit Gifts 313.