Masjid-e-Sayyed, Isfahan

• The symmetry group of the tiling is *4.0• (d4.0).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains four squares.
• Contains five regular 8-pointed star polygons with vertex angle of 90°.
• There are four non-regular reflective tiles.
• The tiling is edge-to-edge.
• As drawn, contains about 93 polygons.

1. Photo by David Wade: IRA 1617 (Masjid-e-Sayyed, Isfahan, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1840AD, 1256AH)
2. Fig A.22 of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}

• Wade photo IRA 1617

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