New vintage STERLING SILVER double happiness pendant necklace

New vintage STERLING SILVER double happiness pendant necklace Definitely a unique and beautiful piece! Lace or scalloped like look / medallion shape! Chinese character of DOUBLE HAPPINESS in the center of a hatched textured “coin” medallion. Some light oxidation on hatched texture for contrast detailing. Framed by Wavy undulating wire edges and tiny “nuggets”. On silver smooth setting. 20 mm not including bail. Very fine smooth thin silver curb chain. Tight small links that don’t tangle or snag like others this small. 15”. Not quite 1 mm thick. New vintage c. 1970s. Probably made in Hong Kong. Hallmarks: “DSTER” on reverse of pendant Note: first three pictures (including cover shot) are after I polished with toothpaste. All of the other photos are before it was polished. For Feng Shui, Chinese culture and arts, Calligraphy lovers!