Vintage David Andersen Sterling Silver Enamel Leaf Clip Earrings 1960s

A vintage pair of solid silver and blue enamel clip earrings - each earring of a stylised leaf shape with a polished section to one half of the design and a reserve of blue enamel over vein type stripes on the other with a clip fitting to the back - marked for David Andersen of Oslo - total weight 7.4grms - overall dimensions 35 x 15mm - c.1965 Norway