Mosque of Gowhar, Mashhad

• 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.
• There is one non-regular reflective tile.
• 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 125 polygons.

1. Dick Osseman's web site (Esrefoglu Suleyman Bey, Beysehir, Turkey. Door) from [pc] (1296-1302AD, 695-701AH)
2. Photo 269 (black and white) third arch (Mosque of Gowhar, Mashhad, Iran. Court) from [pope] (1418AD, 821AH)
3. Photo from M Bulut (Buriciye madrasah, Sivas, Turkey) from [pc]
4. Photo from M Bulut (Sircali mosque, Konya, Turkey) from [pc]
5. Photo from M Bulut (Tomb, Kırkkızlar, Niksar, Turkey) from [pc]

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