Grafton, Plate 9H

• The symmetry group of the tiling is 442 (p4).
• All the internal angles of the constituent polygons are a multiple of 90°.
• There is one non-regular reflective tile and one tile with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 164 polygons.

1. Plate 9F (lower right) (Some ornamentation omitted) of Carol Belanger Grafton. Decorative Tile Designs in full Color, Dover, 1992. [grafton] {92 High quality colour plates; dated 1870-1930.}

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