Unusually ladies finger ring with square ring rail. Edging from six arrow-shaped arranged navette-shaped, faceted seeming rubellits, untestet, from in each case approximate 4, 0 x 2, 5 mm. Seeming 750er WG, untestet, designates "K 18". 2. Half 20th century ring size: Germany: 52; USA / Canada: 6; Great Britain: double-line cancel; France: 12. Approximate. 2, 45 large