Jali screen, Agra Fort

Without support in octagons.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular two-pointed star polygon with vertex angle of 45°.
• Contains one regular octagon.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 555 polygons.

1. Photo from Aslam Qureshi (Jali screen, Agra Fort, India) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1565-73AD, 972-80AH)

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