Qijmas al-Ishaqi minbar

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 2.5°.
• Contains one regular octagon.
• Contains one regular 9-pointed star polygon with vertex angle of 40°.
• Contains one regular 18-pointed star polygon with vertex angle of 80°.
• There are 6 non-regular reflective tiles and two reflective pairs.
• The tiling satisfies the interlace condition and has three finite interlaces and three infinite interlaces.
• The tiling is edge-to-edge.
• As drawn, contains about 345 polygons.

• Plate 136 (not quite the same) of J Bourgoin. Arabic Geometrical Pattern and Design, Dover, 1879. ISBN 048622924. [bourgoin] {Classical book of around 200 hand-produced patterns, in back and white.} Fuller version available on Internet.
• Thesaurus Islamicus Foundation, F6061A (Balustrade of the minbar, Qijmas al-Ishaqi, Cairo, Egypt) of Not specific. Personal Communication, Information sent to the author, 21 century . [pc]

• Tilings not constructible by straightedge and compass

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