A quintessential example from Lucio Fontana's iconic 'Concetto Spaziale, Attese' series, featuring four precise vertical slashes through a vivid cerulean blue monochrome canvas. These deliberate cuts transcend two-dimensionality, revealing the dark void behind the surface and embodying Fontana's Spatialism—his radical quest to merge art with surrounding space. Blue examples from this series are particularly prized by collectors for their striking chromatic intensity and meditative quality.