Roman mosaic, Split and Grado

Note that the Grado version contains much more ornament than the Split version. Also note that the octagon is not regular.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• There are three non-regular reflective tiles.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 71 polygons.

1. Pl 180 (b,c) (Split and Grado) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}

v54