Roman mosaic, Saint-Romain-en Gal

• The symmetry group of the tiling is *442 (p4m).
• Contains two squares.
• There are four non-regular reflective tiles and one reflective pair.
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 439 polygons.

1. Pl 144 (d) (Saint-Romain-en Gal) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}

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