Aljaferia Palace, Mudejar ceiling

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• Contains one regular octagon.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are three non-regular reflective tiles and one reflective pair.
• 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 205 polygons.

1. Flickr photo by boris doesborg (Aljaferia Palace, Zaragoza, Spain, Mudejar ceiling) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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