Composición serial , by lidy prati , 1948 , abstract , Concretism style , Text, Line, Pattern
A white poster with red and black squares on it.
A white piece of paper has a grid of numbers on it. The numbers are arranged in rows and columns. Each row has a square with a red dot in the middle of it. There are two lines of equal numbers in the first row. The second line is red. The last line is black. There is a small square in the last row.