The house of Qavam al-Dowlah

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains five regular two-pointed star polygons with vertex angle of 72°.
• Contains 12 regular pentagons.
• Contains two regular 10-pointed star polygons with vertex angle of 108°.
• There are 6 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has four finite interlaces and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 977 polygons.

1. Page 95 (House of Qavam al-Dowlah, Iran) of Javad Shafai. On decoration in Persian architecture and wood carving, Tehran, 1977. [shafai] {In Persian}

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