Topkapi scroll
In the Turkish Topkapi palace a scroll is kept with construction desings. Some of them clearly show a girih pattern. In the next picture the five forms are colored.
![afbeelding Lu & Steinhardt](https://www.geogebra.org/resource/cbkmvwtr/dk0Jn1V0byQkone5/material-cbkmvwtr.png)
Dual layer patterns
The drawing on plate 28 of the scroll show a multi-layered pattern.
- The light gray lines match with a pattern of girih tiles. The dark gray lines show the associated line pattern.
- The red lines match with a pattern of much bigger girih tiles.
This drawing shows the girih tiles of both levels:
![This drawing shows the girih tiles of both levels:](https://www.geogebra.org/resource/bzuwthf7/eH3MJrmLBT2SoiyB/material-bzuwthf7.png)
On other panels of the scroll too we can find 2-layered patterns
![On other panels of the scroll too we can find 2-layered patterns](https://www.geogebra.org/resource/xyat7qes/p1YADBIVmSqTCtQL/material-xyat7qes.png)