Mosque of Sultan Baybars

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 7.5°.
• Contains one regular two-pointed star polygon with vertex angle of 75°.
• Contains one regular 12-pointed star polygon with vertex angle of 75°.
• There are 8 non-regular reflective tiles (including 2 kites).
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 323 polygons.

1. Page 175, Fig. 35 (Tomb of Umar al-Suhrawardi, Baghdad, Iraq) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1234AD, 631AH)
2. Volume II, Figure 52c (al-Zahir Baybars, Cairo, Egypt. NW end of transcept) of K A C Creswell. The Muslim Architecture of Egypt, Oxford, 2 volumes, 1952/59. [creswell] {}(1266-9AD, 664-7AH)

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