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Otterberg, Abbey church Country: Germany Date: C13/20
Symmetry symbol Schoenflies: C4v Symmetry absolute number: 5 Symmetry comment: Inside view reveals the mirror symmetry of each individual panel making the composition truly 4mm, 8mm, 16mm as it expands radially (- to be categorized with the 16s)
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| Photograph by: Painton Cowen |