Dye, Figure B 4b

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• The tiling satisfies the two-polygon condition.
• As drawn, contains about 78 polygons.

1. Figure B 4b (Oblong Octagon-Lozenge, Hankow, Hupeh, 1850 AD) of Daniel Sheets Dye. Chinese Lattice Designs, Dover, 1937. ISBN 048623096. [dye] {Important book topic.}
2. PP Class 89, [p4m,d4,d1], IH Class 70 of S J Dawes and B A Wichmann. A New Class of Tilings with Two Prototiles, Visual Mathematics, Vol 3, No 4., 2001. [dawes] {Revises CD/booklet.} Available on Internet.

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