Tessellation of the letter E (with the aligned repeat going back-to-back) in symmetry group p2. Only a special E (with arm length √6-1) fits in a rectangular cell (of ratio √6-1 too). Currently displaying a white outlined version in 3 colours (the minimum map colouring) of red, yellow and blue. This triples the cell size and destroys the symmetry. Other colours, sizes and orientations are available on request and you can even ask for a combination of several designs together.