These pretty white guilloche enamel on vermeil (gold over sterling) earrings are marked "WK" Norway sterling. The shape is open, made up of four veined leaves, reminiscent of David Andersen's designs. The screw-backs could easily be changed for posts or wires. These earrings are pre-1965, possibly from before World War II. They are in excellent original condition. Each earring is 1 1/4" long X 5/8" wide.