Winfried Krüger, ring, 1988. Collectie Schmuckmuseum Pforzheim. Foto Coert Peter Krabbe, mei 2019, CC BY 4.0
Winfried Krüger, ring, 1988. Collectie Schmuckmuseum Pforzheim. Foto Coert Peter Krabbe, mei 2019, CC BY 4.0

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Winfried Krüger, ring, 1988. Collectie Schmuckmuseum Pforzheim. Foto Coert Peter Krabbe, mei 2019, CC BY 4.0