Alhambra, Sala del Mexua,

Two long carved and painted wooden beams enclosing the central lantern on its east and west sides.

• 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 two regular octagons.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are 8 non-regular reflective tiles (including one kite and one dart).
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 473 polygons.

1. Photo from Nick Crossling (Alhambra, Sala del Mexuar, Spain. Little colour in original, plaster panel) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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