Charbagh Madrasah, Isfahan

• The symmetry group of the tiling is 4*2 (p4g).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular hexagon.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are one non-regular reflective pairs and no tiles with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 83 polygons.

1. Volume 5, page 50 (Charbagh Madrasah, Isfahan, 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.(1122AD, 515AH)
2. Part 3, Plate LXXXIII (Fatehpur Sikri, The Large Baths, India) of E W Smith,. The Moghul Architecture of Fathpur-Sikri, Archaeological Survey of India, 1896. [smith2] (1581AD, 989AH)
3. Photo by David Wade: TRA 0330 (Tillya-Kari Madrasah, Samarkand, Central Asia) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1660AD, 1070AH)

• Wade photo TRA 0330

v54