Amol, the Mir Qavam al-Din Mar'ashi building

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• There are three non-regular reflective tiles.
• The tiling satisfies the interlace condition and has one finite interlace and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 311 polygons.

1. Page 267, Fig. 140 (Sultan Han, Kayseri, Turkey) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1232-6AD, 629-33AH)
2. Page 267, Fig. 140 (Esrefoglu Suleyman Bey, Beysehir, Turkey) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1296-7AD, 695-6AH)
3. Vol2, page 176 (Mir Qavam al-Din Mar'ashi, Amol, Iran) of Mahmood Maher al-Naqsh. Design and execution of drawing in Iranian tilework, Islamic period, Reza Abbasi Museum, 1983. [iran] {Good collection of Iranian patterns, text in Persian} Available on Internet.

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

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