Roman mosaic, Rome

Proportions vary of this pattern.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 90°.
• Contains three squares.
• There is one non-regular reflective tile.
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 187 polygons.

1. Page 6 Room N.4 (Fishbourne, UK) of Robert Field. Geometric Patterns from Roman Mosaics, Tarquin Publications, 1996. ISBN 090621263. [field1] {Gives sources of several interesting Roman patterns.}
2. Pl 142 (a) (Rome) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}
3. Plate IX(21) (No location, Egypt. Egyptian, from a Mummy case at the Lourve, late period.) of Owen Jones. The Grammar of Ornament, Dover, 1856. ISBN 048625463. [jones] {Excellent book with 100 colour plates, with many containing several tiling patterns.} Fuller version available on Internet.

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