Pakistan, Thatta: Shah Jehan mosque

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains two squares.
• Contains one regular 12-pointed star polygon with vertex angle of 90°.
• There are two non-regular reflective tiles (including one kite).
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 237 polygons.

1. Vol3, Figure 89, page 69 (Original colouring not used as brown on white interlacing) 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