Bourgoin, Plate 60

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• 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 no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 153 polygons.

1. Vol 1, page 130; Vol 2, page 430 (Bou Inania Madrasah, Fez, Morocco) from [paccard] (1351-6AD, 751-7AH)
2. 308:100-1866 (Toledo, Spain. Tile) from [vami] (15th century AD)
3. Figure 34 from [elsaid]
4. Page 143 from [critchlow]
5. Page 271 from [abas]
6. Plate 60 from [bourgoin]
7. Vol 2, page 310 (Royal Palace mosque, Marrakesh, Morocco. Door restored in 1979) from [paccard]

• V&A record Tile
• Wade photo BOU 060

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

v54