I tried - using the internet and some guidebook - to reconstruct what is the source and age of these tiles. I have the feeling the Wikipedia English version (as I found it on 28-1-2017) is probably most true: "The most important of these are the blue and white tile panels influenced by far-eastern ceramics on the chamber facade, dated 1529. These once embellished ceremonial buildings of Sultan Suleiman I, such as the building of the Council Hall and the Inner Treasury (both in the Second Courtyard) and the Throne Room (in the Third Courtyard). They were moved here out of nostalgia and reverence for the golden age of his reign. These tiles then served as prototypes for the decoration of the Yerevan and Baghdad kiosks. "

So though I first thought the wall had remained in place I now think the tiles were moved.

I claim a certain responsibility for them still being there as I once, years ago, asked to see the director informing her that vandals were taking pictures of each other with their feet resting on these invaluable tiles. It may take a better, more relaxed picture, but is pure vandalism. A few days ago (2017) I saw some people lean on ancient Egyptian statues, also to take a better picture. I personally would love to have a picture of my leaning against one of the Rembrandt paintings in my home town, but I refrain. The tiles now have plexiglass covers, which is nasty when taking a picture.

Detail of the left one of the two panels of this type at the left side of the door.