Dye, Figure R 5a

• The symmetry group of the tiling is 2222 (p2).
• All the internal angles of the constituent polygons are a multiple of 90°.
• Contains 6 squares.
• There are three non-regular reflective tiles.
• The tiling satisfies the interlace condition and has no finite interlace and four infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 100 polygons.

1. Figure R 5a (Swastikas with divided ten-character, Chengtu, Szechwan, 1875 AD) of Daniel Sheets Dye. Chinese Lattice Designs, Dover, 1937. ISBN 048623096. [dye] {Important book topic.}

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