Bourgoin, Plate 54

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular octagon.
• Contains one regular 8-pointed star polygon 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 two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 238 polygons.

1. Figure 56 (Bibi-Khanym, Samarkand, Central Asia. Spandrel over entrance to main prayer hall) from [hill] (1404AD, 806AH)
2. Page 388, Fig 183-2 (Bibi-Khanym, Samarkand, Central Asia. Spandrel over entrance to main prayer hall) from [rempel] (1404AD, 806AH)
3. E.3842:42-1938 (Cairo, Egypt. Sketchbook by James Wild) from [vami]
4. Plate 54 from [bourgoin]
5. Thesaurus Islamicus (Amir Qijmas al-Ishaqi, Cairo, Egypt. qibla iwan, lintels over first and third doors from the east and west) from [pc]
6. Very similar to Page 231 from [abas]
7. Vol2, page 290, (/3) (Royal Palace, Fez, Morocco. Detail of back on momumental door) from [paccard]

• Wade photo BOU 054
• V&A record Sketchbook

v54