Window grill, Shahr-e Kord, Iran

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 3.75°.
• Contains one regular 8-pointed star polygon with vertex angle of 112.5° - composed of kites.
• Contains one regular 12-pointed star polygon with vertex angle of 97.5° - composed of kites.
• There are four non-regular reflective tiles (including 4 kites) and two reflective pairs.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 519 polygons.

1. Figures 232 and 233 (Hefah Tan mausoleum) from [orazi]
2. From Tony Lee (Charbagh Madrasah, Isfahan, Iran) from [pc]
3. From Tony Lee (Shahr-e Kord, Iran) from [pc]
4. Photo by David Wade: IRA 1135 (Madrasah-yi-Madar-i-e-Shah, Isfahan, Iran) from [wadei]

• Wade photo IRA 1135

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