Bourgoin, Plate 173

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains one regular pentagon.
• Contains one regular 10-pointed star polygon with vertex angle of 108°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has one finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 225 polygons.

1. Photo by David Wade: EGY 1607 (al-Maridani, Cairo, Egypt) from [wadei] (1337-9AD, 737-9AH)
2. Colour Plate VII from [bourgoin]
3. Figure 67b from [elsaid]
4. Plate 173 from [bourgoin]

• Wade photo BOU 173
• Wade photo EGY 1607

v54