Mausoleum of Sultan Oljeitu, Sultaniyeh

• The symmetry group of the tiling is 632 (p6).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one equilateral triangle.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There is one non-regular reflective tile and 6 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 460 polygons.

1. photo IRA 2607 (Mausoleum of Sultan Oljeitu, Sultaniyeh, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1313AD, 712AH)

• Wade photo IRA 2607

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