Vintage Anton Michelsen modernist solid silver and white porcelain disc neckring

A vintage solid silver modernist one piece neckring with a split circular porcelain pendant  suspended on a long rigid wire benath a front hook closure - these rare statement pieces were made to celebrate the merger of Anton Michelsen; Jeweller to the Royal Court of Denmark, with Royal Copenhagen as part of the Royal Scandia companies  in 1968 ; the two companies collaborating to produce ranges of jewellery utilising their various specialist skills - marked for both Anton Michelsen; jeweller to the Royal Court of Denmark and Royal Copenhagen they also bear the monogram for the RC designer Jens Windfeld-Hansen - total weight approx 58grms - overall dimensions wearable length 420mm - drop 155mm and diameter of pendant 60mm- c.1970 Denmark