Mausoleum of Sultan Oljeitu, Sultaniyeh

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains 34 squares.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are 6 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has five finite interlaces and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 657 polygons.

1. Archnet photo (Mausoleum of Sultan Oljeitu, Sultaniyeh, Iran) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1313AD, 712AH)
2. Photo 242 (Mausoleum of Sultan Oljeitu, Sultaniyeh, Iran) of Derek Hill. Islamic architecture and its decoration, A.D. 800-1500..., Faber and Faber, Pressmark 35.C.183, 1964. ISBN 050051032. [hill] {With an introductory text by Oleg Grabar}(1313AD, 712AH)
3. photo IRA 2607 (Mausoleum of Sultan Oljeitu, Sultaniyeh, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1313AD, 712AH)

• Wade photo IRA 2607

• Tilings with coloured interlacing

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