Roman mosaic, Silchester
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The square is usually ornemented in some way, perhaps just an internal square.
- 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 with straight cross-overs.
- The tiling is edge-to-edge.
- As drawn, contains about 81 polygons.
- Vol2, page 118 (Charbagh Madrasah, Isfahan, Iran) from [iran] (1122AD, 515AH)
- Figure 32.5a, page 284 (No location, Stated as being from Egypt) from [stevens]
- Page 18 (Used at Silchester, the Forum Baths at Herculaneum and Bignor) from [field1]
- Page 54, pl 14 (Chedworth) from [neal]
- Page 8, number 6 from [wade]
- Photo by David Wade: SPA 2002x (Great Mosque, Cordova, Spain) from [wadei]
- Pl 190 (a,d) (Saranda and Sousse) from [balmelle]
- The Metropolitan Museum of Art (Wall decoration with geometric and floral decoration) from [pc]
- Vol2, page 358, Figure 331 (Raqqah, Syria. Blind window) from [sarre]