Sultan Barsbay Funerary Complex

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains one regular three-pointed star polygon with vertex angle of 90°.
• Contains one regular four-pointed star polygon with vertex angle of 120°.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• There are four non-regular reflective tiles (including one kite) and one reflective pair.
• The tiling satisfies the interlace condition and has no finite interlace and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 449 polygons.

1. Photo by David Wade: EGY 1030 (al-Ashraf Barsbay, Cairo, Egypt) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1423AD, 826AH)
2. Internet photo Thesaurus Islamicus Foundation: (al-Ashraf Barsbay, Cairo, Egypt. Qibla iwan, minbar, door on north side) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1425-33AD, 828-36AH)

• Wade photo EGY 1030
• Wade photo LOU 011

• Tiling with three or more proper stars

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