Friedrich Becker (Ende near Hagen 1922 - 1997 Düsseldorf), Brooch, 1977, 18ct. yellow gold, 9.27 grams. L. 33 mm. Signed: 750, artist's mark (embossed)., Cf. Hildegard Becker, Friedrich Becker, Schmuck.Kinetik.Objekt, Stuttgart 1997, p. 80f.

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