RG0111CU VINTAGE JADE / BLUE - HAND HAMMEREDDESCRIPTION RIGARDS 2022 Spring Summer Collection. Eyewear with round type full rim frame. This item is made of carefully handmade hammered copper material and has an expert feel. The color is blue rust (+ blue lens) which has undergone corrosion treatment. The color of the rust is adjusted by soaking it in a special chemical which is uniquely mixed, and the soaking time is done by the sense of the designer, so the expression differs from one to