Dye, Figure D 30b

• The symmetry group of the tiling is 4.5• (c4.5).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains four squares.
• There are two non-regular reflective tiles.
• The tiling is edge-to-edge.
• As drawn, contains about 279 polygons.

1. Figure D 30b (Unifocal Octagon-Square Windows, Mount Omei, Szechwan, 1800-1900 AD) of Daniel Sheets Dye. Chinese Lattice Designs, Dover, 1937. ISBN 048623096. [dye] {Important book topic.}

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