The article solves the mystery of the “Citizens’ Committee with Lech Wałęsa” election posters that paved the way to the victory of Solidarity in June 1989. For 25 years the issue of posters has not raised any controversy. The historians presupposed that each member of the Committee had had an election poster with the leader of Solidarity movement on it. The article refutes that myth. Having analyzed historical documents and eyewitness memories, the author uncovers which candidates did not have this kind of poster.