Mausoleum, Ahmed-i Jam

• The symmetry group of the tiling is *8.0• (d8.0).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular octagon.
• Contains two regular 8-pointed star polygons with vertex angle of 45°.
• There are four non-regular reflective tiles.
• The tiling is edge-to-edge.
• As drawn, contains about 73 polygons.

1. Page 123, photo 75 (Mausoleum, Ahmed-i Jam, Torbat-i Jam, Iran. Fresco) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}

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