Linocut print featuring a musical thrush who loves percussion...The theme refers to trade union, revolutionary and insurrectionary struggles. The slogan is based on a play on words in French between "grive" (thrush) and "grève" (strike).The scene is taken from a personal photograph of a thrush on his 'forge' breaking the shell of a snail. It is engraved with a style and textual elements reminiscent of late nineteenth-century graphics.