Madrasah-yi-Madar-i-e-Shah, Isfahan

• The symmetry group of the tiling is 632 (p6).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular 12-pointed star polygon with vertex angle of 90°.
• There are no non-regular reflective pairs and three tiles with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 356 polygons.

1. Photo by David Wade: IRA 1125 (Madrasah-yi-Madar-i-e-Shah, Isfahan, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1714AD, 1126AH)

• Wade photo IRA 1125

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