Mosque Mesched Makam Ali

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 25.71 (π/7)°.
• Contains one regular 7-pointed star polygon with vertex angle of 77.14 (3π/7)°.
• There are two non-regular reflective tiles.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 79 polygons.

• Tony Lee's notebook, page 279 of Not specific. Personal Communication, Information sent to the author, 21 century . [pc]
• Page number not recorded of H Viollet. Description du palais de Al-Montasim..., Paris, 1909. [viollet]

• Tilings not constructible by straightedge and compass

v23