'Abd al-Samad complex, Natanz

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 2.5°.
• Contains one regular three-pointed star polygon with vertex angle of 105°.
• Contains one regular 6-pointed star polygon with vertex angle of 80°.
• There are two 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 143 polygons.

1. Page 123, Fig 4.76 ('Abd al-Samad Complex, Natanz, Iran) of Eric Broug. Islamic Geometric Design, Thames and Hudson, 2013. ISBN 978050051695. [broug2] {Many excellent photos}(1304-25AD, 703-25AH)
2. Page 182, Fig. 51a (Cifte Minare madrasah, Erzurum, Turkey) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}  Variant A(1450-1550AD, 854-957AH)

• Patterns with variants

v54