Laurids Lønborg Set of six turqouise and blue napkin rings from the 1970'es

Laurids Lønborg Denmark, set of six turqouise and blue napkin rings from the 1970'es. There are only five on the picture, but there are six pieces. Diameter 5.0 cm., width 3.3 cm. Excellent condition. The price is for six (6) pieces.