Agen, cathedral


Uppermost rose window on the facade

Country: France, 47

Date: C15

Symmetry symbol: 4m

Symmetry symbol Schoenflies: C4v

Symmetry absolute number: 5

Symmetry comment: The outer circle is 4mm but the inside is only 3-fold (triskelium). Contrast makes this window unique

Tracing by Andrea Molina

Photograph by: http://amaryllis.apln-blog.fr/category/sculptures/