Cahier and Martin, page 2 (top left)

• The symmetry group of the tiling is 22* (pmg).
• All the internal angles of the constituent polygons are a multiple of 45°.
• There is one non-regular reflective tile.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 152 polygons.

1. Page 2 (top left) of Charles Cahier and Arthur Martin. 376 Decorative Allover Patterns from Historic Tilework and Textiles, Dover, 1868. ISBN 048626146. [cahier]

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