Join (#11) , by frederick hammersley , 1961 , abstract , Hard Edge Painting style , Rectangle
A painting of a black and blue rectangle.
 an abstract painting. The painting is composed of three blocks. The first block is white. The second block is blue. The third block is black. The black block is in the shape of a triangle. The white block is on the left side of the black block. The blue block is the middle block.