The reference to the 'Black and Tans', who were employed by the British to suppress the Irish independence movement, adds to the negative portrayal of the treaty. The 'Black and Tans' gained notoriety for their violent reprisals against the Irish population, and their association with the treaty in the poster suggests it was seen as a betrayal of Irish aspirations for full independence. The imagery of the harp, a symbol of Ireland, being "crowned" represents the imposition of British authority or the limitations on Irish sovereignty under the treaty. The text implies that the "freedom" granted by the treaty was not genuine but rather a continuation of British influence and oppression, symbolized by the Black and Tans' headwear.