By having the segment drives on the back in a vertical row and at equal distances, the Kegelzahnräder end up in different places, so there are in fact 4 different segments: 2 left, 2 right, top/bottom and the middle one. The right ones in the picture require a bit of glue to glue a piece of ‘Verbindungsstück’ on the inside of an ‘Eckstein 15’.