Roman mosaic, Italica

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains three regular two-pointed star polygons with vertex angle of 45°.
• Contains one regular octagon.
• There are one non-regular reflective pairs and no tiles with no mirror image.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 545 polygons.

1. Pl 373 (c) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}

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