Mausoleum of Rusama ibn-Abbasa

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains three squares.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are four non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 201 polygons.

1. Figure 290 (Mausoleum of Rusama ibn-Abbasa, Complex of Shah-Zinda, Samarkand, Central Asia) of Г.А. Пугаченкова, Л.И. Ремпель. История Искусств Узбекистана, Искусство Москва, 1965. [pugatch] {Book in Russian}(14th century AD)

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