Persian MSS in British Museum

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 199 polygons.

1. Plate XLV(7) (No location, Persian MSS, Iran. British Museum) of Owen Jones. The Grammar of Ornament, Dover, 1856. ISBN 048625463. [jones] {Excellent book with 100 colour plates, with many containing several tiling patterns.} Fuller version available on Internet.

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