Tomb of Sheik Safi al-din Ardabili

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains one regular two-pointed star polygon with vertex angle of 72°.
• Contains two regular five-pointed star polygons with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 36°.
• There are 8 non-regular reflective tiles.
• The tiling satisfies the interlace condition and has one finite interlace and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 340 polygons.

1. Photo via Vida Amani (Tomb of Sheik Safi al-din Ardabili, Ardabil, Iran. Vertical side of coffin) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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