Trudel (Co.), Zurich, Swiss, est. 1967 - 2008 Gold ring, 1972 Of square signet design, stylized openwork spiral motif, to the irregular pentagonal finger band Signed TRUDEL, stamped 750 for 18K gold Dimensions approximately: Finger size : 50 Square motif : 20 x 20 mm Gross weight approximately : 26,72 grams Provenance: Purchased at Trudel Juwelier, vormals BURCH-KORRODI Bahnhofstrasse 44 8001 ZURICH, invoice dated 22.2.1972