al-Ashraf Barsbay

• The symmetry group of the tiling is *4.0• (d4.0).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one square.
• There are four non-regular reflective tiles.
• The tiling is not edge-to-edge.
• As drawn, contains about 57 polygons.

1. Vol 2, page 109 (al-Ashraf Barsbay, Cairo, Egypt) of Hasan `Abd-al-Wahhab. Tarikh al-masajid al-athariyah, Cairo, 2 vols in Arabic, 1946. [wahhab] {The History of ancient Egyptian mosques}(1425-33AD, 828-36AH)

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