Sultan Shah minbar door

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 26 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 72°.
• There are 8 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has 9 finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 935 polygons.

1. 1050:1 to 2-1869 (Cairo, Egypt. Sultan Shah minbar door) of V&A collections website. Website: collections.vam.ac.uk, UK, 2015. [vami] {Website}

• V&A record Minbar

v54