Dar el Bey, Tunis, Tunisia

• 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.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are four non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has one finite interlace and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 267 polygons.

1. Plate 35 (Dar el Bey, Tunis, Tunisia) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}

• Wade photo EPC 040

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

v54