Home Product Tag sewing thread Zwicky – Iris – Flora – Silk Thread Jean Walther,1940 Collector’s Choice Zwicky – Silk Thread Donald Brun,1946 SOLD Zwicky – Sewing & Embroidery Silks Donald Brun,1946 Zwicky – Silk Thread Donald Brun,1946 Zwicky – Sewing & Embroidery Silks Donald Brun,1946 Gütermann sewing thread Peter Birkhäuser,1951 SOLD Zwicky – Sewing & Embroidery Silks Donald Brun,1953 … there is only one Grilon – swiss textile Walter Grieder,1954 More