Roman mosaic, Ampurias

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains two squares.
• There is one non-regular reflective tile.
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 202 polygons.

1. Archnet site 2121 (Tomb of Ismail Samani, Central Asia. Earliest example) from [pc]
2. Page 1 (top) from [cahier]
3. Page 41 (Santa Maria in Cosmedin, Rome. Italy) from [field2]
4. Pl 120 (c) (Ampurias) from [balmelle]
5. Plate XXX(36) also XXXV(2) (Byzantine ornament, from Hessemer) from [jones]
6. page 74 (St Maria Maggiore, Rome. Italy. With slightly different colours, 431-1750) from [hessemer]

v54