I include some photos of the each part. The Cathedral was made in the 1850s and from the photos is beautiful. The design on the central part, by the way is a version of the quincunx - in which four spin out of one. Regular readers of my column will know immediately that this can be seen as a geometric representation of the four evangelists carrying the Word to the four corners of the world. Right at the bottom I have given a 13th century English illumination, of Christ in Majesty that has this form. You can see an old photo the window from the exterior and pictures of the separated parts. There is also on of the window viewed from the inside before the restoration started.
Photos courtesy of photographer Arlen Nydam who has written about the window and its restoration here
Photos courtesy of photographer Arlen Nydam who has written about the window and its restoration here