What was the first collage painting by Pablo Picasso?

The first collage painting by Pablo Picasso is widely considered to be "Still Life with Chair Caning," created in 1912. This work incorporates a piece of oilcloth that resembles a chair caning pattern, effectively blending painting and collage techniques. Picasso's innovative use of mixed media marked a significant departure from traditional artistic methods, influencing the development of modern art.