Atabaki courtyard, Qom

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains one regular hexagon.
• Contains one regular three-pointed star polygon with vertex angle of 90°.
• There are two non-regular reflective tiles.
• The tiling satisfies the interlace condition and has one finite interlace and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 352 polygons.

1. Table 16 (Sultan Han, Konya, Turkey) of Kurt Erdmann. Das anatolische Karavansaray des 13. Jahrhunderts, Berlin, 1961-76. [erdmann] {In 3 volumes}
2. Vol 1, page 150 (Atabaki courtyard, Qom, Iran) of Mahmood Maher al-Naqsh. Design and execution of drawing in Iranian tilework, Islamic period, Reza Abbasi Museum, 1983. [iran] {Good collection of Iranian patterns, text in Persian} Available on Internet.

v54