Roman mosaic, Gloucester

Within the 8-pt star, is a tightly braided ornament which is not included.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one regular two-pointed star polygon with vertex angle of 45°.
• Contains one regular octagon.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 87 polygons.

1. Page 86, Figure 22 (Mosaic from Gloucester, colouring not known, without interlacing) of D S Neal. Roman mosaics in Britain, Society for the Promotion of Roman studies, 1981. ISBN 090776414. [neal] {Beautiful publication.}
2. Pl 178 (b) (Timgad) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}

v54