Bourgoin, Plate 118, standard construction

Common and widespread, but proportions extremely variable; See also Bourgoin, Plate 118, non-standard construction.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 7.5°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• Contains one regular 12-pointed star polygon with vertex angle of 75°.
• There are 6 non-regular reflective tiles (including 2 kites).
• 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 527 polygons.

1. Photo from David Wade: EGY 1609 (al-Maridani, Cairo, Egypt) from [wadei] (1340AD, 740AH)
2. Page 99 (Friday mosque, Yazd, Iran) from [degeorge2] (1365AD, 766AH)
3. Flickr photo (Gur-e Amir Mausoleum, Samarkand, Central Asia) from [pc] (1404AD, 806AH)
4. Photo by Brian McMorrow (Ulugh Beg Observatory, Central Asia) from [pc] (1420AD, 823AH)
5. Part 4, Plate LXXVI (Fatehpur Sikri, Friday Mosque, India. Inlaid marble on the side walls of the embowed entrance to the Baland Darwaza) from [smith2] (1571AD, 978AH)
6. Fig 6.1, photo from [ww]
7. Page 41, photo 23 (Friday Mosque, Gonabad, Iran) from [bonner]
8. Page 46, photo 29 (Friday mosque, Isfahan, Iran) from [bonner]
9. Photo by Brian McMorrow (Bakhautdin Naqsband Mausoleum, Central Asia) from [pc]
10. Photo from David Wade: IRA 0636 (Friday mosque, Isfahan, Iran) from [wadei]
11. Plate 118 from [bourgoin]

• Wade photo BOU 118
• Wade photo EGY 1609
• Wade photo IRA 0636

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