San Lorenzo Fuori, Rome

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains four squares.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 358 polygons.

1. Plate XXX(10) (Byzantine ornament, San Lorenzo Fuori, Rome, Italy) 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.(1275-1300AD, 673-99AH)

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