Charbagh Madrasah, Isfahan

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are four non-regular reflective tiles.
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 143 polygons.

1. Vol4, pages 24, 17 and 28 (Charbagh Madrasah, Isfahan, Iran) from [iran] (1122AD, 515AH)
2. Figure 12 (I), page 9 (Tashkent scroll) from [necipoglu]
3. Leather Roll(7) from [akber]
4. Vol5, pages 27 (Golestan Palace, Tehran, Iran) from [iran]

• Wade photo MA 046

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

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