Tomb of Sheikh Safi, Ardebil

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 5°.
• Contains one regular four-pointed star polygon with vertex angle of 70°.
• Contains one regular 8-pointed star polygon with vertex angle of 65°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 167 polygons.

1. Page 292, Fig 179b (Hudavent tomb, Nigde, Turkey) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1312AD, 711AH)
2. Photo from Ayman Soliman (al-Ashraf Barsbay, Cairo, Egypt) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1425-33AD, 828-36AH)
3. Vol 2, page 180 (Tomb of Sheikh Safi, Ardebil, 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.

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