Tiling from a Roman Mosaic

• The symmetry group of the tiling is 442 (p4).
• All the internal angles of the constituent polygons are a multiple of 90°.
• There are no non-regular reflective pairs and one tile with no mirror image.
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 81 polygons.

• Page 18 (Used at Silchester, the Forum Baths at Herculaneum and Bignor) from [field1]
• Figure 32.5a, page 284 (Stated as being from Egypt) from [stevens]
• Page 8, number 6 from [wade]

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