Stevens, Page 283

• The symmetry group of the tiling is 442 (p4).
• There are no non-regular reflective pairs and two tiles with no mirror image.
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with non-straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 155 polygons.

1. Page 283, Figure 32.3 of Peter S Stevens. Handbook of regular patterns: an introduction to symmetry in two..., MIT Press, 1984. ISBN 026269088. [stevens] {Illustrations in black and white}

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