1. Poster. Unity in Double Affair, Baltimore & D.C. Concert Creator: Black Fire Production (Washington, District of Columbia) Published / Created: 1975 Aug 8-9 Call Number: JWJ MSS 36 Collection Title: Printed ephemera of African American political activism and arts Container / Volume: Box 3 | Folder 147 Image Count: 1 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > Poster. Unity in Double Affair, Baltimore & D.C. Concert