Friday mosque, Isfahan

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains one square.
• Contains one regular hexagon.
• Contains one regular three-pointed star polygon with vertex angle of 150°.
• Contains one regular 6-pointed star polygon with vertex angle of 90°.
• There are three non-regular reflective tiles (including one kite).
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 643 polygons.

1. Photo IRA 0729 (Friday mosque, Isfahan, Iran) of David Wade. Pattern in Islamic Art, Studio Vista, 1976. ISBN 028970719. [wade] {Some beautiful coloured patterns, but source not given.}
2. Richard Henry's web site (Friday mosque, Isfahan, Iran. Cut stone work) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

• Wade photo IRA 0729

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