al-Rifa'i mosque, Cairo

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular two-pointed star polygon with vertex angle of 45°.
• Contains one regular octagon.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 281 polygons.

1. Thesaurus Islamicus, F6820 (al-Rifa'i mosque, Cairo, Egypt. Eastern portal of south façade, marble floor) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1869-1910AD, 1286-1328AH)

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