al-Ghuriyya Complex, Cairo

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• There are 8 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has five finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 543 polygons.

1. Page 239 (Qanibay al-Sayfi, Cairo, Egypt. Panel of minbar) of Bernard O'Kane. The Mosques of Egypt, AUC, Cairo, 2016. ISBN 978977416732. [okane2] {}(1503AD, 908AH)
2. Flickr photo (Sultan Ahmed Mosque, Istanbul, Turkey) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1609-16AD, 1018-25AH)
3. Thesaurus Islamicus Foundation (al-Azhar mosque, Cairo, Egypt. Ottoman riwaqs, body of mihrab) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

• Wade photo EGY 1728

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