Rubin Quartett Sizes: 150 × 150 / 200 × 300 / 768 × 1.152 / 683 × 1.024 / 2.560 × 3.840 v.l.n.r.: Ulrike Zavelberg (Cello), Jana Andraschke (Violine), Martina Horejsi (Viola), Irmgard Zavelberg (Violine)