I constructed an on site silkscreen printing station, which was open for public to print their own poster. The screens were about my long-term research on archive and history of local communist propaganda campaign during the 60s to 70s in Hong Kong. The messages and imaginary on the screens reveal the mainstream narrative of communist on their “United Front strategy” and anti-revisionist attitude in the colonial city; while most of the exhibition visitors did not pay attention to the underlying political message, they enjoyed printing propaganda posters, and the action became very ironical that was superimposed onto the current political context in Hong Kong.