Untitled (2001) is one of the most relevant examples of the end of Amilcar de Castro's career. Back in the 1950s, the sculptor developed a technique governed by seamless operations, only cutting and folding single sheets of metal. Here, the use of corten steel as raw material, which oxidizes over time, as well as the use of irregular geometric figures (and not circles, squares and rectangles, as in previous decades) are part of an interest in the organic.
Larger scale pieces also allow for viewing through these cuts, creating tension in the relationship between interior and exterior.